SUPERBOLT TECHNOLOGY

Advanced bolting solutions

 THE SUPERBOLT STORY 6-15
Product portfolio
About us
Our technology
Benefits & common applications
Lifetime Warranty

___
NEWS & INNOVATIONS 16-25
VersaTite

WHATEVER COMES ALONG,

GT/GTS
EzFit
HyFit

WE HOLD IT TOGETHER.
___ STANDARD NUT & BOLT-STYLE TENSIONERS
GT, GTS, MT, CY, SB8, SB12, H650, H650T
26-35

Superbolt was the world’s first to revolutionize nuts and bolts with
the multi-jackbolt tensioner (MJT) in 1984. Since then, Superbolt REACTIVE SIDE SOLUTIONS 36-39
has proven its technology in tens of thousands of successful
Flexnuts SX8, SX12
installations. Superbolt tensioners are easy to work with and provide
an overwhelming mechanical advantage with their unique design,
which divides the load among multiple small jackbolts. Once installed COMPACT/LOW-PROFILE TENSIONERS 40-47
properly, MJT connections are reliable, and can stay tight indefinitely. SJ, SJX, SSJX, NM/NI, SMX
Even MJTs of enormous sizes are safe and can be installed or
removed by a single worker with ordinary hand tools.
DYNAMIC APPLICATION TENSIONERS 48-53
But the revolution hasn’t stopped here. Superbolt continues to CN, SP, MR, MRA
develop a multitude of solutions to solve the next generation of bolting
challenges. With the widest range of tensioners on the market and
constant growing portfolio, Superbolt has got you covered. CUTTING-EDGE SOLUTIONS 54-61
EXTREME REQUIREMENTS
Superbolt is a part of the Nord-Lock Group. Our global team of sales • Large diameters & high preload, STC
engineers and partners will give you the support needed to ensure • High & low temperature
that your bolted connections are optimized and safe. • Environmental & corrosion protection
EXTREME INDUSTRY APPLICATIONS
• Including space, nuclear, fusion, defense
UNIQUE DESIGNS FOR YOUR REQUIREMENTS
• Offshore/Sub-sea
• Externally threaded tensioners
• Tamper-proof tensioners
• Customized studs

NORD-LOCK GROUP 62-63

www.superbolt.com
2 3
 STANDARD NUT & BOLT-STYLE TENSIONERS STANDARD NUT & BOLT-STYLE TENSIONERS
New Global Tensioner for a New Super High-Strength For general mechanical For higher bolt loads on general Bolt-style tensioners for Similar to SB8 bolt- Replace standard hex nuts at Replace most castle nuts at
wide variety of general industry Global Tensioner for applications; suited for medium- machinery applications; fit in applications with tapped holes; style tensioners; for temperatures up to 350°C (650°F). 350°C (650°F) for tight spaces.
applications. Suitable for extreme-strength bolts. strength bolts and studs; fit in the same space as heavy hex. fit in tight spaces; external hex high-strength.
PRODUCT PORTFOLIO

PRODUCT PORTFOLIO
common grade studs/bolts. the same space as heavy hex Use with high-strength bolts for installation and removal.
nuts; feature hex-head jackbolts. and studs.

GT GTS MT CY SB8 SB12 H650 H650T

Range Range
M16-M160 M16-M100 M16-M160 M16-M160 M16-M160 M20-M90 M20-M125 M24-M100
Metric Metric

Range Range
3/4"-6" 3/4"-4" 3/4"-6" 3/4"-6" 3/4"-6" 3/4"-3-1/2" 3/4"-5" 1"-4"
Imperial Imperial

Approx. Approx. 310 N/mm2 310 N/mm2

bolt stress 400 to 1000 N/mm2 400 to 1200 N/mm2 400 to 750 N/mm2 400 to 1000 N/mm2 bolt stress 350 to 650 N/mm2 550 to 850 N/mm2
45 ksi 45 ksi
depending 60 to 145 ksi 60 to 175 ksi 60 to 100 ksi 60 to 145 ksi depending 50 to 95 ksi 80 to 125 ksi
Based on stress area As Based on stress area As
on size on size

Temperature -40 to 250 °C -40 to 250 °C -40 to 250 °C Temperature -10 to 250 °C
-40 to 250 °C -10 to 250 °C -10 to 350 °C -10 to 350 °C
range C -50 to 500 °F -50 to 500 °F -50 to 500 °F range C 0 to 500 °F
0 to 500 °F 0 to 500 °F -50 to 650 °F -50 to 650 °F
range F Lower temperatures on demand Lower temperatures on demand Lower temperatures on demand range F Lower temperatures on demand

Jackbolt JL-G or JL-AS Jackbolt

JL-G or JL-AS JL-G or JL-AS JL-G or JL-AS lubricant
JL-G or JL-AS JL-G or JL-AS JL-G or P37 JL-G or P37
lubricant Sizes > M100/4" become GTX and use JL-M

COMPACT/LOW-PROFILE TENSIONERS FLEXNUTS

___
For applications Similar to SJ but for To match countersink Interchangeable with many Replace standard OEM Reactive nut for through-hole Similar to SX8 but use in
involving limited higher preloads; moly- dimensions of standard standard series locknuts; mill motor armature nuts; applications. Adds elasticity to combination with CY or SB12.
headroom or thread lubricated set screws. sockethead cap screws. ideal for positioning bearings available for most standard bolted joints. Use in combination
engagement. or clamping entire shaft motor frame sizes. with MT or SB8.

SUPERBOLT
assemblies.

SJ SJX SSJX NM/NI SMX SX8 SX12

AT A GLANCE
Range Range
M20-M160 M20-M160 M20-M100 M30-M160 M30-M160 M20-M160 M20-M160
Metric Metric

___
Range
Range 3/4"-6" 3/4"-6"
3/4"-6" 3/4"-6" 3/4"-4" 1"-6-1/4" 1"-4" Imperial
Imperial
Approx.
Approx. bolt stress 400 to 750 N/mm2 400 to 1000 N/mm2
bolt stress 100 to 450 N/mm2 300 to 650 N/mm2 350 to 800 N/mm2 20 to 90 N/mm2 100 to 250 N/mm2 depending 60 to 100 ksi 60 to 145 ksi
depending 15 to 65 ksi 45 to 95 ksi 50 to 115 ksi 3 to 15 ksi 15 to 35 ksi on size
on size
Temperature -40 to 250 °C
Superbolt offers a full range of standard,
Temperature -10 to 250 °C
-10 to 250 °C -10 to 250 °C -10 to 250 °C -10 to 250 °C -10 to 250 °C range C -50 to 500 °F pre-engineered, and specialty solutions.
range C 0 to 500 °F
0 to 500 °F 0 to 500 °F 0 to 500 °F 0 to 500 °F 0 to 500 °F range F Lower temperatures on demand
range F
This chart provides a quick overview of
Jackbolt
lubricant
JL-G or JL-AS JL-M JL-M JL-M JL-M our core products. For additional selection
help, our application engineers will work
DYNAMIC APPLICATION TENSIONERS CUTTING-EDGE SOLUTIONS with you to find the optimal solution.
For recip. compressor Specially designed to match For rotating equipment; Captive countersunk jackbolts
crossheads; special installation counterbore dimensions of with captive jackbolts. “armored” for harsh environments, EXTREME REQUIREMENTS
procedure simplifies bolting. piston-end nuts they replace. also good for coupling bolting. Large diameters & high preload, STC
RIGHT PRO
High & low temperature
D THE DU
CN SP MR MRA Environmental & corrosion protection N

OPTIM

FI

CT
LL HELP YOU
EXTREME INDUSTRY

FOR
DESIG UM
Range
M36-M160 M36-M160 M16-M125 M20-M125
Metric
APPLICATIONS

YOUR APP
N!
Range
1-1/2"-6" 1-1/2"-6" 3/4"-5" 3/4"-5" Space, Nuclear, Fusion, Defense
Imperial

WE´
Approx.
bolt stress 210 N/mm2 210 N/mm2 300 to 550 N/mm2 350 to 650 N/mm2 UNIQUE DESIGNS FOR

LIC
depending 30 ksi 30 ksi 45 to 80 ksi 50 to 95 ksi
YOUR REQUIREMENTS PE

SU
AT
RB
on size
ION
Temperature
Externally threaded tensioners O LT . C O M
-10 to 250 °C -10 to 250 °C -10 to 250 °C -10 to 250 °C Tamper proof tensioners
range C
0 to 500 °F 0 to 500 °F 0 to 500 °F 0 to 500 °F
range F Customized studs
Jackbolt
JL-M or P37 JL-G or P37 JL-G or JL-AS JL-G or JL-AS
lubricant

4 5
 ________ IF YOU’RE NOT
THE SUPERBOLT STORY

THE SUPERBOLT STORY

USING SUPERBOLT

THE MAN FROM PITTSBURGH

TENSIONERS,
YOU’RE WORKING
TOO HARD.

WHO CHANGED
BOLTING TECHNOLOGY FOREVER
_________
World-renowned Superbolt, Inc., got its start in Pittsburgh, Pa., USA, when the
region was best known as America’s “Steel City”. In 1974, local inventor Rolf
Steinbock was designing and building custom equipment for the steel industry.
A local steel manufacturer purchased one of his designs, a scrap chopper, which
solved problems that plagued older devices. But the new machine’s constant
rotation tended to loosen critical bolts. Downtime for maintenance became a daily
necessity, and it involved re-tightening with a heavy wrench and a sledge hammer.

Mr. Steinbock took one look at this hazardous, repetitive chore and came up with a better idea:
Instead of struggling with the massive torque of large hex nuts, why not divide the torque into
multiple manageable forces? Torque Nm (Lbft)
TORQUE CURVE FOR 310 MPA (45,000 PSI) BOLT STRESS
He sketched out the first multi-jackbolt tensioner (MJT) for fabrication by a local machine shop. With a set
140,000
of MJTs installed, the scrap chopper’s bolts never came loose again. Mr. Steinbock patented his invention (100,000)

TORQUE
and founded Superbolt, Inc., in 1984 and in 1988 a sister company in Switzerland was founded. After
almost three decades of growth, both companies became part of the Nord-Lock Group, the global leader in
secure bolting solutions, in 2011. REQUIREMENTS
Ever since the introduction of the MJT, solving tough bolting challenges FOR STANDARD
NUTS
has been our quest. Today you can choose from an extensive range of
standard and pre-engineered designs, within our portfolio or as a customized
design, all based on decades of experience in tensioner technology.

70,000 TORQUE
REQUIREMENTS
(50,000)

FOR SUPERBOLT
MULTI-JACKBOLT
TENSIONERS

Early sketch of a Superbolt used Rolf Steinbock testing early

in the very first advertisement. Superbolt designs.
30 60 90 120 150 180
Thread diameter (mm)

The chart shows how Superbolt tensioners remain easy to install, even on larger sizes, compared
to standard hex nuts. Only hand tools are required to tighten any diameter stud/bolt.

6 7
 The Superbolt Principle A Full Lifespan of Advantages
Superbolt tensioners are designed as direct replacements
DESIGN INITIAL INSTALLATION OPERATION MAINTENANCE
THE SUPERBOLT STORY

THE SUPERBOLT STORY

for conventional nuts and bolts. These devices can be
threaded onto a new or existing bolt, stud, threaded rod or
shaft. The main thread serves to position the tensioner on
the bolt or stud against the hardened washer and the load-
bearing surface. Once it is positioned, actual tensioning of
the bolt or stud is accomplished with simple hand tools
by torqueing the jackbolts which encircle the main thread.
The jackbolts transfer the preload evenly into the main
thread and, consequently, onto the joint. The main thread
is tightened in pure tension. HIGHER PRELOAD HAND TOOLS ONLY HIGHER VIBRATION EASY INSPECTION
Tightening in pure tension A single worker can RESISTANCE Torque checks can be
allows higher preloads torque or un-torque the Preloads that exceed done safely and easily,
with greater accuracy most massive Superbolt separating forces prevent using only hand tools.
than other methods, assemblies with ordinary bolts from vibrating loose.
1 making Superbolt MJTs hand tools.
By tightening the jackbolts, the ideal choice.
a strong thrust (axial) force
is generated. This thrust
force is directed against BETTER BOLTED JOINT GREATER SAFETY ACCURATE TENSIONING NO GALLING
a hardened washer. Generating preload Superbolt tensioners Accurate, even tension Tightening in pure tension
Jackbolts have a small high enough above the eliminate dangerous from joint to joint eliminates thread galling
friction diameter and can separating forces means pinch points, heavy- ensures even loading that is common with
therefore create a high no loosening on properly equipment lifts, or tool- and reduces the risk of direct-torque methods.
thrust force with relatively designed joints. shattering stresses. leakage.
little torque input.

CUSTOM SOLUTIONS FEWER SPACE LIMITS GREATER RELIABILITY QUICK DISASSEMBLY

2
Custom products tailored Multi-jackbolt tensioners Accurate preloads Easily removed MJTs
The loads are transferred to your application are easier to install in prevent joint loosening, reduce the expense of
through the nut body which can accommodate confined spaces. minimizing fatigue and extended downtime
is positioned on the main demanding preload prolonging bolt life. associated with standard
thread by hand. requirements, space bolting methods.
restrictions, or harsh
environments.
3
A hardened washer is used
to transfer the force while
DESIGN OPTIONS REDUCED CYCLE TIME REDUCED DOWNTIME REUSABILITY
protecting the flange face.
High preload capacity You can tighten or Properly designed Superbolt tensioners are
and greater accuracy remove Superbolt and tightened joints reusable. Preload can be
make smaller bolts tensioners in a fraction stay secure in service, restored anywhere with
4 feasible for your design. of the time compared limiting maintenance- simple hand tools.
The thrust (axial) force of Reduced dimensions to other methods. Two related downtime.
jackbolts and the opposite and tooling sizes can or more technicians can
reaction force of the main mean smaller devices work side-by-side using
bolt head create a strong that use less material hand-held air or electric
clamping force on the and cost less to build. tools, further reducing
flange. cycle time.

5
The thrust (axial) force
from the jackbolt creates CUSTOMER
an equally strong reaction
force in the main bolt.

8 9
 ___ Joint design and installation

EXPERIENCED ENGINEERS
THE SUPERBOLT STORY

THE SUPERBOLT STORY

AND TOTAL CUSTOMER SUPPORT
___
From design and manufacturing to installation and operation, our expertise is at your
service through our global network of sales offices. Find yours at nord-lock.com.
STUD BOLTS TAPPED HOLES THROUGH-HOLES COUNTER BORES
Superbolt nut-style tensioners Superbolt bolt-style tensioners A common application of double- Superbolt bolt-style
may be used on studs into are often used into blind- ended studs uses Superbolt nut- tensioners can be provided
Protect your blind-tapped holes. Tightening tapped holes. MJT bolt heads style tensioners and a reaction to fit completely into small
investment by in pure tension means studs are more compact and fit into nut (Flexnut) on the other end. counterbores. An internal
using Superbolt- will not gall in the tapped hole tighter areas; additionally they Flexnuts add elasticity to the installation removal hex allows
recommended and can be easily removed. reduce the number of parts. stud, increasing the fatigue life. for easy turning into position.
accessories and
consumables.

Helpful tips
Accessories and consumables Engineering support

The wrong parts, tools, and materials can reduce the function of Joint calculation & verification, product
Superbolt tensioners or cause direct and indirect damage. You can development, customer unique with tailored
protect your investment in safe bolted connections by using high- designs, calculation sheets, finite element
quality, Superbolt-recommended accessories and consumables, analysis, and more. Contact us for preload
including: monitoring options for on-site service with
• Lubricants • Sockets • Pneumatic/electric high value.
• Protective caps • Torque wrenches wrenches
CENTERING OF WASHER ON THREAD MATERIAL WITH LOW STRENGTH LARGE OR SLOTTED HOLES
Instruction manuals Make sure the washer is not resting A thicker/larger washer or an An additional washer or a large washer
on one side of undercuts or radius additional washer may be necessary is necessary to transfer the bolt load to
To ensure correct assembly, and increase safety, speed, and service
of mating studs. when materials with low strength a supported surface.
life, we include a complete installation and removal manual with
are used on the joint.
every Superbolt tensioner shipment. You can access the same
useful information anywhere, anytime in PDF or video form at
www.superbolt.com. For further info on using, applying and
maintaining Superbolt tensioners,
contact your local Nord-Lock
sales office.

Installation assistance SPACE REQUIREMENTS TENSIONER AT THE END OF STUD VERY LONG THROUGH-STUD
Check for space restrictions when using An additional distance spacer may be A special tensioner with a larger circle of
Our expertise is at your service. When you need a socket and wrench combination. necessary to bring tensioner closer to jackbolts may be necessary to properly
backup, trained Superbolt technicians can: the end of the stud for proper socket fit. access the jackbolts for tightening.
• Train your team
• Support your team during installations
• Perform/assist with installations
If your application corresponds to one or more of the above mentioned design criteria, we will help you find the best solution.

10 11
 Mining Mining_2
___ Oil_gas

WE’VE GOT THE

Logistic

THE TOUGHER YOUR PROBLEM,

THE MORE WE LIKE IT
THE SUPERBOLT STORY

THE SUPERBOLT STORY

GLOBAL MARKET
___ COVERED
Mining

Visit Cutting-edge solutions (p.54) for more

Steel PetroChemical PetroChemical alt inspiration or contact us for detailed support. Oil_gas

PRESSES MINING Steel

Press columns, tie rods, bearing Boom points, ring gears, side frames,
blocks, high pressure piping, hoist motors, pedestal tie-downs,
Steel-forge-press Oil_Gas_2 Mining

die cushions, cylinder ram bolting, drag-lines, pinion gears, hoist and drag
Logistic anchorbolts andAgriculture
more. drums, split gears, bolted segments, Logistic
excavator bearing caps and more.
Steel-forge-press

Steel
OIL, GAS & PETROCHEMICAL
Power
POWER GENERATION
Top drives, blow out preventors, Including nuclear, wind, hydroelectric,
Oil_gas Construction Oil_gas
mud pumps, fracturing pumps, fossil, and other. Turbine couplings, Power
reactor covers, heat exchanger heads, stay rods, manway doors, inlet flanges,
turbine control valves, turbine joints,
Steel-forge-press
boiler pump, main flange, boiler feed
pipe flanges, anchorbolts, pump head, barrel casing, blade bolts, pelton
Mining couplings and more.Mining_2 turbine nozzles, servo piston nuts, and more. Mining

GAS COMPRESSION STEEL MILLS Power

Crosshead jamnuts, counterweight crosshead Thrust collars, coupling bolts, tie rod nuts,
Steel
jamnuts, couplings, connecting rod nuts, PetroChemical alt
PetroChemical
anchor bolts, mill motors, bearings, shaft Steel

distance pieces, end plates, compressor mounts, roll tables, BOF and EAF applications,
cylinders, doghouse bolting, piston end nuts, coilers, hydraulic cylinders, cranes, slitter
valve jackbolts and more. knives, universal joints, back-up roll bearings,
work roll bearings, pipe mills and more.
Steel-forge-press Oil_Gas_2 Steel-forge-press

Power Power

12 13
 ___
DISCOVER THE SUPERBOLT SOLUTION
DESIGNED FOR YOUR BOLTING CHALLENGES

TORQUE OR UN-TORQUE
THE SUPERBOLT STORY

THE SUPERBOLT STORY

INNOVATIVE AND PROVEN
NO WONDER WE’RE___
CALLED SUPERBOLT MASSIVE ASSEMBLIES
Superbolt products are proven in every major industry. Tested in the field,
WITH ORDINARY HAND TOOLS
our tensioners are preferred for space, mining, oil and gas, petrochemical,
forging and presses, power generation, marine propulsion, and many other
industry-specific applications. Customer-focused solutions that optimize
the bolting process from start to finish have made Superbolt the trusted
choice worldwide.

Our engineers go to work each day determined to take on the world’s most
difficult bolting challenges. We are the first to offer a full lifecycle warranty
for Superbolt technology, enabling engineers to shape modern living in
the decades to come.

World-class manufacturer
Superbolt products meet the industry’s highest standards. They’re manufactured at our state-
of-the-art facilities in Pittsburgh, Pa., USA, and St. Gallenkappel, Switzerland, where advanced
CNC machining allows exceptional precision and quick turnaround. Most standard products are
available off-the-shelf or within short lead times. Quality control, including thread-gauging and
measurement systems, is standard operating procedure, and every multi-jackbolt tensioner is
marked for traceability.

Project engineering
Our in-house engineering team provides a center of continuous product innovation, grounded in decades IF YOU’RE NOT
of bolted-joint know-how. Superbolt’s design expertise extends into dozens of industries, where we’ve USING SUPERBOLT
gained specialized knowledge – and numerous certifications – by solving difficult bolting challenges. TENSIONERS,
YOU’RE WORKING
Speaking your language TOO HARD.

Our parent company, Nord-Lock Group, is a global leader in secure bolting

solutions with an international network of sales offices and partners.
Superbolt has representation in 65+ countries.

14 15
 NEWS & INNOVATIONS
NEWS &
INNOVATIONS
From day one, innovation has been
synonymous with Superbolt. Today, we
continue to lead the way as evidenced in
our newest product lines: Global Standard
GT/GTS Series Tensioners, VersaTite
Hydraulic Mechanical Tensioners, EzFit
Mechanical Expansion Bolts, and HyFit
Hydraulic Expansion Bolts.
Read on to learn more about these
groundbreaking offerings, and count
on Superbolt to continue advancing
bolting technology…now and well into
the future.

Innovative ways to help our customers!

Custom products can be designed and manufactured quickly, to ensure that
our customers’ downtime is minimized and their equipment is back up and
running safely and efficiently.

16 17
 BEST OF BOTH WORLDS IN A NEW RANGE
NEWS & INNOVATIONS

NEWS & INNOVATIONS

Introducing the new
global tensioning range NEW RANGE,
ENHANCED
L I NE MATERIAL &
CAPABILITIES.
E MT
TH
THE CY LINE

The all-new GT Mechanical Tensioner series from Superbolt is your

go-to bolting solution for common high-strength studs and bolts

NEW
found throughout industry. The GT is well-suited for the toughest of

NEW!
applications, enabling you to achieve high bolt loads safely and with

RANGE! ease. They are compatible for use on 8.8, 10.9 or equivalent-grade
studs and bolts.

Superbolt is proud to introduce the new GT range – a merging of our MT and CY lines, GTS
offering the best of both worlds. This new range provides numerous advantages to a
broad application base: Also available: new
• Range standardization, as all sizes follow the global standard, streamlined for ISO 898 compability. GTS super-duty mechanical
• Shortened lead time and increased stocking globally. tensioners, designed for
• Increased mechanical advantage, which includes optimized load and torque output. super high-strength load
• And more! applications on 10.9, 12.9 or
equivalent studs and bolts!

THE NEW GLOBAL TENSIONING RANGE

18 19
 TWO TECHNOLOGIES IN ONE SYSTEM

VERSATITE
NEWS & INNOVATIONS

NEWS & INNOVATIONS

SPEED,
UNIFORMITY
AND
VersaTite,
the latest generation
in tightening solutions.

ACCURACY. NEW!
Mechanical tensioners. Hydraulic tensioners. Each has Hydraulically pressurized VersaTite delivers a fast, uniform initial preload. The design
its advantages. But what if one product could incorporate lets you accurately control the final preload mechanically by applying torque to a system
the strengths of both approaches? of jackbolts. Removal method is up to you – mechanical or hydraulic.

That combination is here, in the groundbreaking new

• Depending on location, number of fasteners, space constraints, time, and availability of tooling,
VersaTite Hydraulic Mechanical Tensioner. Now you can your operator can choose either mechanical or hydraulic removal.
attain the speed and uniformity of a hydraulic tensioner • VersaTite incorporates reliable Boltight hydraulic tensioning with state-of-the art seal and pressure design.
with the accuracy of a mechanical tensioner.
• The achieved preload is easily controlled by applying the final torque mechanically with Superbolt
multi-jackbolt tensioning.

20 21
 COUPLING BOLTING MADE SIMPLE
NEWS & INNOVATIONS

NEWS & INNOVATIONS

EzFit, the mechanical EZFIT
SIMPLER,
way to easily bolt
coupling flanges
together.

LOWER-COST,
BOLT
NEW
NAME!
REPLACEMENT.
Incorporating Superbolt technology, EzFit mechanical
The innovative EzFit coupling bolt from Superbolt provides fast expansion bolt is able to offer tremendous radial
and accurate coupling maintenance using simple hand tools. expansion and joint clamping power in one bolting
system. The expansion bolts replace traditional inter-
• Truly fitted bolt ensures optimum drive and prevents coupling slippage. ference or force-fit bolts. The key to this solution is the
• Reusable – installed and removed in clearance condition. split expansion sleeve that mates with the customer’s
• No bolt or coupling hole damage. machined holes. The split sleeve requires less tolerance
• Generous hole tolerance and split sleeve expansion minimize on mating parts than is traditionally required with
requirement for on-site hole preparation. interference fit, saving critical machining time.

22 23
 SUPERIOR HYDRAULIC COUPLING BOLT
NEWS & INNOVATIONS

NEWS & INNOVATIONS

HYFIT
COUPLING HyFit, the new

CHALLENGES
advanced hydraulic
expansion bolt.

RESOLVED.
HyFit, the hydraulically operated expansion bolt by Superbolt, has been

NEW!
designed to address safety concerns expressed by many current users
of hydraulic coupling bolts. In also providing the solution for coupling
maintenance where standard-type “fitted” bolts cause major outage delays,
its application solves most large coupling bolt issues in a totally unique
package. HyFit is ideal for steam turbines, gas turbines, marine propulsion
drives and all heavy rotating equipment plants. Benefits include: HyFit delivers high-performance torque transmission for critical-load rotating shafts and
couplings. It’s an advanced solution for every coupling that requires truly fitted bolts:
• Truly fitted bolt • Reduce maintenance costs.
• Easily installed and removed in clearance condition • Improve efficiency.
• Accommodates varying hole sizes • Maximize plant availability.
• Provides accurate maintenance scheduling • Minimize coupling breakout/make-up times.
• Fully reusable – only requires sleeve replacement in the • Quickly and easily regain alignment and concentricity.
case of rotor change
• Increase peace of mind.
• No bolt/hole damage, no re-work required

24 25
 COMMON APPLICATIONS

STANDARD NUT & BOLT-STYLE TENSIONERS

Mining equipment
Anchor bolts
Gearboxes
Crushers
Compressors
Presses
Flange connections
Split gears

STANDARD NUT &

BOLT-STYLE TENSIONERS
When it comes to standard nut & bolt-style
tensioners, Superbolt has got you covered
for a wide range of applications across all
industries.
The GT and GTS Series, Superbolt’s newest lines,
provide range standardization that offers global
feasibility, increased mechanical advantage, and
more to a broad application base.
The MT and SB8 Series offer nut and bolt-style
solutions for general mechanical applications,
while the CY and SB12 Series provide
solutions for high preload applications.
Medium-temperature applications are
best suited for Superbolt’s H650 Series,
though the H650T Series is ideal for

Reliable from start to finish use where space is limited.

Our engineering team can help you determine your bolted joint’s critical
dimensions and load conditions to ensure a reliable and cost-effective solution.

26 27
 L L
n n

GT GTS
2 SW 2 SW
STANDARD NUT & BOLT-STYLE TENSIONERS

STANDARD NUT & BOLT-STYLE TENSIONERS

Nut-style tensioner Nut-style tensioner

DxP
DxP

D1

DS
D1

DS
standard- & high-strength super high-strength
GT Series Tensioners are used for standard- and high-strength bolt loads on many general mechanical GTS Series Tensioners are used for super-high-strength bolt loads on general mechanical applications.
applications. Suitable as ISO 898-2 class 8 replacement for use on grades 8.8 or equivalent stud/bolts. H S H S Suitable as ISO 898-2 class 10 replacement for use on grades 10.9 or equivalent stud/bolts.

70% of 8.8 70% of 10.9

Hardened Preload Hardened Preload
Metric and imperial Size Nut body Jackbolt Height Weight yield strength Metric and imperial Size Nut body Jackbolt Height Weight yield strength
washer capacity* washer capacity*
(reference)* (reference)*
Part Thread Available pitch or TPI 1 2 3 tot est Preload Torque max Part Thread Available pitch or TPI 1 2 3 tot est Preload Torque max
group Part number D P1 P2 P3 D1 H n SW Ds S L F M group Part number D P1 P2 P3 D1 H n SW Ds S L F M
[mm] or [in.] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN] [mm] or [in.] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN]
GT-M16x…/W M16 2 1.5 1 0.16 70 9 145 GTS-M16x…/W M16 2 1.5 1 0.32 105 26 195
1 37 17 6 5 37 4 34 1 42 25 4 6 42 5 45
GT-075-…/W 3/4 10 16 — 0.15 100 13 145 GTS-075-…/W 3/4 10 16 — 0.30 145 36 195
GT-M20x…/W M20 2.5 1.5 1 0.19 110 11 190 GTS-M20x…/W M20 2.5 1.5 1 0.36 160 27 290
2 GT-M22x…/W M22 2.5 1.5 1 40 18 8 5 40 4 34 0.18 135 13 190 2 GTS-M22x…/W M22 2.5 1.5 1 46 25 6 6 46 5 45 0.35 200 34 290
GT-087-…/W 7/8 9 14 — 0.18 135 13 190 GTS-087-…/W 7/8 9 14 — 0.35 200 33 290
GT-M24x…/W M24 3 2 1.5 0.39 160 27 290 GTS-M24x…/W M24 3 2 1.5 0.46 230 26 435
3 GT-100-…/W 1 8 12 14 50 23 6 6 50 5 45 0.38 175 30 290 3 GTS-100-…/W 1 8 12 14 51 25 9 6 51 5 45 0.46 260 29 435
GT-M27x…/W M27 3 2 1.5 0.36 205 35 290 GTS-M27x…/W M27 3 2 1.5 0.44 300 34 435
GT-112-…/W 1-1/8 7 8 12 0.43 225 32 340 GTS-112-…/W 1-1/8 7 8 12 0.75 325 59 535
4 53 25 7 6 53 5 45 4 60 31 7 8 60 6 58
GT-M30x…/W M30 3.5 2 1.5 0.41 250 36 340 GTS-M30x…/W M30 3.5 2 1.5 0.73 370 66 535
GT-125-…/W 1-1/4 7 8 12 0.72 285 59 455 GTS-125-…/W 1-1/4 7 8 12 0.85 415 65 610
5 62 28 6 8 62 6 58 5 64 32 8 8 64 6 58
GT-M33x…/W M33 3.5 2 1.5 0.70 310 65 455 GTS-M33x…/W M33 3.5 2 1.5 0.83 455 72 610
GT-137-…/W 1-3/8 6 8 12 0.83 335 61 535 GTS-137-…/W 1-3/8 6 8 12 0.95 495 62 760
6 65 32 7 8 65 6 58 6 68 32 10 8 68 6 58
GT-M36x…/W M36 4 3 1.5 0.81 365 66 535 GTS-M36x…/W M36 4 3 1.5 0.93 535 68 760
GT-150-…/W 1-1/2 6 8 12 0.97 410 65 610 GTS-150-…/W 1-1/2 6 8 12 1.41 600 113 935
7 71 32 8 8 71 6 58 7 75 38 8 10 75 8 70
GT-M39x…/W M39 4 3 1.5 0.96 435 69 610 GTS-M39x…/W M39 4 3 1.5 1.39 640 121 935
GT-162-…/W 1-5/8 6 8 12 1.06 485 68 685 GTS-162-…/W 1-5/8 6 8 12 1.58 715 119 1,050
8 75 32 9 8 75 6 58 8 79 39 9 10 79 8 70
GT-M42x…/W M42 4.5 3 1.5 1.05 500 70 685 GTS-M42x…/W M42 4.5 3 1.5 1.56 735 123 1,050
GT-175-…/W 1-3/4 5 8 12 1.58 555 119 820 GTS-175-…/W 1-3/4 5 8 12 1.72 815 122 1,170
9 83 38 7 10 83 8 70 9 83 40 10 10 83 8 70
GT-M45x…/W M45 4.5 3 1.5 1.56 585 126 820 GTS-M45x…/W M45 4.5 3 1.5 1.71 860 129 1,170
GT-187-…/W 1-7/8 6 8 12 1.83 670 126 935 GTS-187-…/W 1-7/8 6 8 12 2.38 985 192 1,400
10 89 38 8 10 89 8 70 10 90 46 9 12 90 8 85
GT-M48x…/W M48 5 3 1.5 1.82 660 124 935 GTS-M48x…/W M48 5 3 1.5 2.37 970 189 1,400
GT-200-…/W 2 4.5 8 12 1.90 730 122 1,050 GTS-200-…/W 2 4.5 8 12 2.69 1,070 188 1,560
11 91 38 9 10 91 8 70 11 95 47 10 12 95 8 85
GT-M52x…/W M52 5 3 2 1.86 785 132 1,050 GTS-M52x…/W M52 5 3 2 2.64 1,160 203 1,560
GT-M56x…/W M56 5.5 4 2 2.93 910 177 1,400 GTS-M56x…/W M56 5.5 4 2 3.08 1,340 195 1,870
12 102 50 12 12 102 8 85
12 GT-225-…/W 2-1/4 4.5 8 12 102 50 9 12 102 8 85 2.88 945 184 1,400 GTS-225-…/W 2-1/4 4.5 8 12 3.04 1,390 203 1,870
GT-M60x…/W M60 5.5 4 2 2.77 1,060 206 1,400 GTS-M60x…/W M60 5.5 4 2 4.53 1,550 282 2,330
13 112 59 11 14 112 10 101
GT-250-…/W 2-1/2 4 8 12 3.99 1,160 290 1,700 GTS-250-…/W 2-1/2 4 8 12 4.35 1,710 310 2,330
13 111 57 8 14 111 10 101
GT-M64x…/W M64 6 4 2 3.96 1,200 299 1,700 14 GTS-M64x…/W M64 6 4 2 116 59 12 14 116 10 101 4.84 1,760 293 2,550
GT-M68x…/W M68 6 4 2 4.49 1,370 303 1,910 15 GTS-M68x…/W M68 6 4 2 118 61 13 14 118 10 101 4.93 2,010 308 2,760
14 118 57 9 14 118 10 101
GT-275-…/W 2-3/4 4 8 12 4.38 1,440 318 1,910 GTS-275-…/W 2-3/4 4 8 12 5.62 2,110 301 2,970
16 125 62 14 14 125 10 101
GT-M72x…/W M72 6 4 2 5.13 1,550 309 2,120 GTS-M72x…/W M72 6 4 2 5.48 2,280 324 2,970
15 GT-M76x…/W M76 6 4 2 124 62 10 14 124 10 101 4.86 1,740 347 2,120 GTS-M76x…/W M76 6 4 2 6.90 2,560 319 3,390
17 138 62 16 14 138 10 101
GT-300-…/W 3 4 6 8 4.85 1,740 346 2,120 GTS-300-…/W 3 4 6 8 6.89 2,550 318 3,390
GT-M80x…/W M80 6 4 2 5.87 1,950 299 2,760 18 GTS-M80x…/W M80 6 4 2 140 72 14 16 140 12 116 8.10 2,860 457 3,880
16 133 62 13 14 133 10 101
GT-325-…/W 3-1/4 4 6 8 5.68 2,060 317 2,760 GTS-325-…/W 3-1/4 4 6 8 10.02 3,030 424 4,440
19 152 72 16 16 152 12 116
GT-M85x…/W M85 6 4 2 8.06 2,220 413 3,330 GTS-M85x…/W M85 6 4 2 9.81 3,260 455 4,440
17 144 72 12 16 144 12 116
GT-350-…/W 3-1/2 4 6 8 7.71 2,420 451 3,330 GTS-350-…/W 3-1/2 4 6 8 10.94 3,550 468 4,720
20 160 75 17 16 160 12 116
GT-M90x…/W M90 6 4 2 8.98 2,500 431 3,610 GTS-M90x…/W M90 6 4 2 10.83 3,680 484 4,720
18 151 75 13 16 151 12 116
GT-375-…/W 3-3/4 4 6 8 8.45 2,810 483 3,610 21 GTS-375-…/W 3-3/4 4 6 8 167 75 18 16 167 16 120 12.38 4,120 512 4,990
GT-M100x…/W M100 6 4 2 10.07 3,130 467 4,160 GTS-M100x…/W M100 6 4 2 15.94 4,600 515 5,550
19 163 75 15 16 163 12 116 22 186 75 20 16 186 16 120
GT-400-…/W 4 4 6 8 9.90 3,220 480 4,160 GTS-400-…/W 4 4 6 8 15.75 4,730 529 5,550
GTX-425-…/W 4-1/4 4 6 8 16.18 3,660 331 5,250
20 178 102 15 17 178 12 146
GTX-M110x…/W M110 6 4 2 15.86 3,830 347 5,250 * All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
GTX-450-…/W 4-1/2 4 6 8 19.58 4,130 311 6,300 Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Other sizes, thread pitches or thread per inch (TPI) may be available.
21 GTX-M120x…/W M120 6 4 2 193 102 18 17 193 12 146 18.64 4,600 347 6,300
- Dimensions listed are representative.
GTX-475-…/W 4-3/4 4 6 8 18.53 4,630 349 6,300
GTX-M125x…/W M125 6 4 2 22.29 5,010 340 7,010
22 203 114 20 17 203 12 161
GTX-500-…/W 5 4 6 8 21.90 5,150 350 7,010
GTX-M130x…/W M130 6 4 2 24.04 5,440 336 7,710
23 211 114 22 17 211 12 161
GTX-525-…/W 5-1/4 4 6 8 23.35 5,710 352 7,710
GTX-550-…/W 5-1/2 4 6 8 29.17 6,290 572 8,850
24 220 127 18 21 220 16 185
GTX-M140x…/W M140 6 4 2 29.10 6,350 578 8,850
GTX-575-…/W 5-3/4 4 6 8 36.87 6,910 565 9,840
25 240 132 20 21 240 16 185
GTX-M150x…/W M150 6 4 2 35.81 7,330 600 9,840
GTX-600-…/W 6 4 6 8 49.68 7,550 537 11,310
26 270 132 23 21 270 16 185
GTX-M160x…/W M160 6 4 — 47.51 8,380 597 11,310

* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Sizes over M100 or 4” become “GTX” and use Superbolt JL-M lube for reduced torque values.
- Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.

28 29
 L L
n
n

MT CY
2 SW 2 SW
STANDARD NUT & BOLT-STYLE TENSIONERS

STANDARD NUT & BOLT-STYLE TENSIONERS

Nut-style tensioner Nut-style tensioner

DxP
DxP

D1

DS
D1

DS
standard high strength
MT tensioners fit in the same space as a heavy hex nut and feature hex-head jackbolts. They're suited for use CY series tensioners are used for high strength bolt loads on general machinery applications.
on general mechanical applications. H S H S They fit in the same space as a heavy hex nut.

Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Preload capacity* Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Preload capacity*

Thread Available pitch 1 2 3 tot est nom nom max Thread Available pitch 1 2 3 tot est nom nom max
Part number D P1 P2 P3 D1 H n SW Ds S L F M Part number D P1 P2 P3 D1 H n SW Ds S L F M
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN]
MT-M16x.../W M16 2 1.5 1 34 16 4 5 32 3 33 0.11 73 14 94 CY-M16x.../W M16 2 1.5 1 34 16 6 5 32 3 33 0.12 110 14 140
MT-M20x.../W M20 2.5 1.5 1 38 16 6 5 38 4 34 0.14 110 14 140 CY-M20x.../W M20 2.5 1.5 1 38 17 8 5 38 4 34 0.15 145 14 185
MT-M22x.../W M22 2.5 1.5 1 41 16 6 5 41 4 34 0.16 110 14 140 CY-M22x.../W M22 2.5 1.5 1 41 17 8 5 41 4 34 0.17 145 14 185
MT-M24x.../W M24 3 2 1.5 44 16 8 5 43 4 34 0.19 145 14 185 CY-M24x.../W M24 3 2 1.5 47 24 6 6 47 4 44 0.30 215 36 285
MT-M27x.../W M27 3 2 1.5 50 24 6 6 50 5 45 0.35 215 36 285 CY-M27x.../W M27 3 2 1.5 51 24 8 6 50 5 45 0.37 285 36 380
MT-M30x.../W M30 3.5 2 1.5 53 24 6 6 53 5 45 0.37 215 36 285 CY-M30x.../W M30 3.5 2 1.5 54 24 8 6 53 5 45 0.38 285 36 380
MT-M33x.../W M33 3.5 2 1.5 59 24 8 6 59 5 45 0.48 285 36 380 CY-M33x.../W M33 3.5 2 1.5 62 32 6 8 61 5 57 0.70 345 72 460
MT-M36x.../W M36 4 3 1.5 66 32 6 8 66 5 57 0.76 345 72 460 CY-M36x.../W M36 4 3 1.5 66 32 8 8 66 5 57 0.79 455 72 610
MT-M39x.../W M39 4 3 1.5 70 32 8 8 70 5 57 0.90 455 72 610 CY-M39x.../W M39 4 3 1.5 72 32 10 8 70 5 57 0.97 570 72 760
MT-M42x.../W M42 4.5 3 1.5 75 32 8 8 73 5 57 1.01 455 72 610
CY-M42x.../W M42 4.5 3 1.5 76 32 12 8 73 5 57 1.10 685 72 915
MT-M45x.../W M45 4.5 3 1.5 83 38 8 10 81 6 68 1.48 700 131 935
CY-M45x.../W M45 4.5 3 1.5 81 38 8 10 80 6 68 1.40 700 131 935
MT-M48x.../W M48 5 3 1.5 85 38 8 10 85 6 68 1.50 700 131 935
CY-M48x.../W M48 5 3 1.5 85 38 10 10 85 6 68 1.54 875 131 1170
MT-M52x.../W M52 5 3 2 94 38 8 10 89 6 68 1.80 700 131 935
CY-M52x.../W M52 5 3 2 94 38 12 10 90 6 68 1.80 1050 131 1400
MT-M56x.../W M56 5.5 4 2 100 38 8 10 95 6 68 2.00 700 131 935
CY-M56x.../W M56 5.5 4 2 98 38 12 10 94 6 68 1.93 1050 131 1400
MT-M60x.../W M60 5.5 4 2 107 38 10 10 100 6 68 2.30 875 131 1170
CY-M60x.../W M60 5.5 4 2 107 59 8 14 106 8 99 3.70 1270 315 1690
MT-M64x.../W M64 6 4 2 113 53 8 14 112 8 92 3.65 1270 315 1690
CY-M64x.../W M64 6 4 2 113 59 10 14 112 8 99 4.10 1580 315 2100
MT-M68x.../W M68 6 4 2 117 53 8 14 117 8 92 3.85 1270 315 1690
MT-M72x.../W M72 6 4 2 120 56 8 14 120 8 92 4.00 1270 315 1690 CY-M68x.../W M68 6 4 2 117 59 12 14 117 8 99 4.30 1900 315 2530
MT-M76x.../W M76 6 4 2 132 56 12 14 127 8 92 5.10 1900 315 2530 CY-M72x.../W M72 6 4 2 121 59 12 14 120 8 99 4.50 1900 315 2530
MT-M80x.../W M80 6 4 2 132 56 12 14 127 8 92 4.80 1900 315 2530 CY-M76x.../W M76 6 4 2 132 61 16 14 127 8 99 5.60 2530 315 3380
MT-M85x.../W M85 6 4 2 137 56 12 14 137 8 92 5.10 1900 315 2530 CY-M80x.../W M80 6 4 2 133 61 16 14 127 8 99 5.40 2530 315 3380
MT-M90x.../W M90 6 4 2 145 59 16 14 140 8 99 6.00 2530 315 3380 CY-M85x.../W M85 6 4 2 139 61 16 14 137 8 99 5.80 2530 315 3380
MT-M100x.../W M100 6 4 2 164 61 16 14 152 8 99 7.80 2530 315 3380 CY-M90x.../W M90 6 4 2 145 61 16 14 140 8 99 6.30 2530 315 3380
MT-M110x.../W M110 6 4 2 177 79 12 17 172 10 125 11.40 3150 645 4200 CY-M100x.../W M100 6 4 2 157 61 16 14 152 8 99 7.00 2530 315 3380
MT-M120x.../W M120 6 4 2 189 81 16 17 179 10 125 13.00 4200 645 5600 CY-M110x.../W M110 6 4 2 177 61 20 14 163 8 99 9.00 3150 315 4200
MT-M125x.../W M125 6 4 2 194 81 16 17 190 10 125 13.50 4200 645 5600 CY-M120x.../W M120 6 4 2 189 81 18 17 179 10 125 13.10 4700 645 6300
MT-M130x.../W M130 6 4 2 205 94 18 17 202 10 140 17.50 4700 645 6300 CY-M125x.../W M125 6 4 2 194 81 18 17 190 10 125 13.70 4700 645 6300
MT-M140x.../W M140 6 4 2 215 94 20 17 215 10 140 18.70 5250 645 7000 CY-M130x.../W M130 6 4 2 205 94 20 17 202 10 140 17.60 5250 645 7000
MT-M150x.../W M150 6 4 2 225 94 20 17 225 12 142 20.00 5250 645 7000 CY-M140x.../W M140 6 4 2 215 94 22 17 215 10 140 18.89 5750 645 7700
MT-M160x.../W M160 6 4 - 234 107 24 17 234 12 162 24.10 6300 645 8400 CY-M150x.../W M150 6 4 2 225 94 22 17 225 12 142 20.10 5750 645 7700
CY-M160x.../W M160 6 4 - 226 107 24 17 220 10 160 20.80 6300 645 8400

Imperial Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Preload capacity* Imperial Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Preload capacity*

Thread Available TPI 1 2 3 tot est nom nom max Thread Available TPI 1 2 3 tot est nom nom max
Part number D P1 P2 P3 D1 H n SW Ds S L F M Part number D P1 P2 P3 D1 H n SW Ds S L F M
[in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft] [LBf] [in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft] [LBf]
MT-075-.../W 3/4 10 16 - 1.47 0.70 4 3/16 1.50 0.13 1.38 0.31 20,400 14 27,200 CY-075-.../W 3/4 10 16 - 1.47 0.70 6 3/16 1.50 0.13 1.38 0.31 30,600 14 40,800
MT-087-.../W 7/8 9 14 - 1.60 0.70 6 3/16 1.63 0.13 1.38 0.34 30,600 14 40,800 CY-087-.../W 7/8 9 14 - 1.70 0.70 8 3/16 1.63 0.13 1.38 0.39 40,800 14 54,400
MT-100-.../W 1 8 12 14 1.90 0.93 6 1/4 2.00 0.19 1.71 0.68 48,600 27 64,800 CY-100-.../W 1 8 12 14 1.90 0.93 6 1/4 2.00 0.19 1.71 0.68 48,600 27 64,800
MT-112-.../W 1-1/8 7 8 12 2.08 0.93 6 1/4 2.13 0.19 1.71 0.79 48,600 27 64,800 CY-112-.../W 1-1/8 7 8 12 2.08 0.93 8 1/4 2.13 0.19 1.71 0.78 64,800 27 86,400
MT-125-.../W 1-1/4 7 8 12 2.25 0.94 8 1/4 2.38 0.19 1.71 0.92 64,800 27 86,400 CY-125-.../W 1-1/4 7 8 12 2.32 1.20 6 5/16 2.38 0.19 2.12 1.30 73,800 49 98,400
MT-137-.../W 1-3/8 6 8 12 2.46 1.20 6 5/16 2.50 0.19 2.12 1.40 73,800 49 98,400 CY-137-.../W 1-3/8 6 8 12 2.46 1.20 8 5/16 2.50 0.19 2.12 1.42 98,400 49 131,200
MT-150-.../W 1-1/2 6 8 12 2.70 1.20 8 5/16 2.75 0.19 2.12 1.70 98,400 49 131,200 CY-150-.../W 1-1/2 6 8 12 2.80 1.42 8 3/8 2.75 0.19 2.43 2.11 129,600 75 172,800
MT-162-.../W 1-5/8 6 8 12 2.96 1.20 8 5/16 2.88 0.19 2.12 2.01 98,400 49 131,200 CY-162-.../W 1-5/8 6 8 12 2.96 1.42 8 3/8 2.88 0.19 2.43 2.29 129,600 75 172,800
MT-175-.../W 1-3/4 5 8 12 3.08 1.42 8 3/8 3.13 0.25 2.49 2.53 129,600 75 172,800 CY-175-.../W 1-3/4 5 8 12 3.20 1.42 12 3/8 3.13 0.25 2.49 2.80 194,400 75 259,200
MT-187-.../W 1-7/8 6 8 12 3.59 1.60 8 7/16 3.50 0.25 2.85 4.07 175,200 114 233,600
CY-187-.../W 1-7/8 6 8 12 3.59 1.60 8 7/16 3.50 0.25 2.85 4.07 175,200 114 233,600
MT-200-.../W 2 4.5 8 12 3.59 1.60 8 7/16 3.50 0.25 2.85 3.87 175,200 114 233,600
CY-200-.../W 2 4.5 8 12 3.70 1.60 12 7/16 3.50 0.25 2.85 4.24 262,800 114 350,400
MT-225-.../W 2-1/4 4.5 8 12 3.95 1.60 8 7/16 3.75 0.25 2.85 4.51 175,200 114 233,600
CY-225-.../W 2-1/4 4.5 8 12 3.95 1.60 12 7/16 3.75 0.25 2.85 4.59 262,800 114 350,400
MT-250-.../W 2-1/2 4 8 12 4.45 2.10 8 9/16 4.50 0.31 3.61 7.82 285,600 233 380,800
CY-250-.../W 2-1/2 4 8 12 4.45 2.30 12 9/16 4.50 0.31 3.87 8.64 428,400 233 571,200
MT-275-.../W 2-3/4 4 8 12 4.70 2.10 8 9/16 4.75 0.31 3.61 8.36 285,600 233 380,800
CY-275-.../W 2-3/4 4 8 12 4.70 2.40 12 9/16 4.75 0.31 3.87 9.45 428,400 233 571,200
MT-300-.../W 3 4 6 8 5.20 2.10 12 9/16 5.00 0.31 3.61 10.30 428,400 233 571,200
CY-300-.../W 3 4 6 8 5.20 2.30 16 9/16 5.00 0.31 3.87 11.33 571,200 233 761,600
MT-325-.../W 3-1/4 4 6 8 5.45 2.20 12 9/16 5.00 0.31 3.61 11.04 428,400 233 571,200
CY-325-.../W 3-1/4 4 6 8 5.45 2.30 16 9/16 5.00 0.31 3.87 11.79 571,200 233 761,600
MT-350-.../W 3-1/2 4 6 8 5.70 2.30 16 9/16 5.50 0.31 3.87 12.62 571,200 233 761,600
MT-375-.../W 3-3/4 4 6 8 6.20 2.40 16 9/16 5.50 0.31 3.87 15.08 571,200 233 761,600 CY-350-.../W 3-1/2 4 6 8 5.70 2.40 18 9/16 5.50 0.31 3.87 13.02 642,600 233 856,800
MT-400-.../W 4 4 6 8 6.45 2.60 18 9/16 6.00 0.31 4.19 17.31 642,600 233 856,800 CY-375-.../W 3-3/4 4 6 8 5.95 2.40 18 9/16 5.50 0.31 3.87 13.49 642,600 233 856,800
MT-425-.../W 4-1/4 4 6 8 6.95 3.00 16 5/8 6.40 0.38 4.76 23.41 806,400 390 1,075,200 CY-400-.../W 4 4 6 8 6.20 2.60 20 9/16 6.00 0.31 4.19 15.50 714,000 233 952,000
MT-450-.../W 4-1/2 4 6 8 7.20 3.00 16 5/8 6.65 0.38 4.76 24.44 806,400 390 1,075,200 CY-425-.../W 4-1/4 4 6 8 6.95 3.00 18 5/8 6.40 0.38 4.76 23.50 907,200 390 1,209,600
MT-475-.../W 4-3/4 4 6 8 7.45 3.20 18 5/8 6.90 0.38 5.06 27.13 907,200 390 1,209,600 CY-450-.../W 4-1/2 4 6 8 7.20 3.00 18 5/8 6.65 0.38 4.76 24.53 907,200 390 1,209,600
MT-500-.../W 5 4 6 8 7.70 3.30 20 5/8 7.15 0.38 5.06 28.83 1,008,000 390 1,344,000 CY-475-.../W 4-3/4 4 6 8 7.45 3.20 20 5/8 6.90 0.38 5.06 29.90 1,008,000 390 1,344,000
MT-525-.../W 5-1/4 4 6 8 8.45 3.70 22 5/8 7.65 0.38 5.36 40.06 1,108,800 390 1,478,400 CY-500-.../W 5 4 6 8 7.70 3.30 20 5/8 7.15 0.38 5.06 28.83 1,008,000 390 1,344,000
MT-550-.../W 5-1/2 4 6 8 8.45 3.70 22 5/8 7.65 0.38 5.36 37.56 1,108,800 390 1,478,400 CY-525-.../W 5-1/4 4 6 8 7.95 3.70 22 5/8 7.65 0.38 5.36 33.12 1,108,800 390 1,478,400
MT-575-.../W 5-3/4 4 6 8 8.95 4.00 24 5/8 8.15 0.38 5.76 46.26 1,209,600 390 1,612,800 CY-550-.../W 5-1/2 4 6 8 7.95 3.70 22 5/8 7.65 0.38 5.36 30.62 1,108,800 390 1,478,400
MT-600-.../W 6 4 6 8 8.95 4.00 24 5/8 8.15 0.38 5.76 43.32 1,209,600 390 1,612,800 CY-575-.../W 5-3/4 4 6 8 8.45 4.00 24 5/8 8.15 0.38 5.76 38.31 1,209,600 390 1,612,800
CY-600-.../W 6 4 6 8 8.45 4.00 24 5/8 8.15 0.38 5.76 35.36 1,209,600 390 1,612,800
* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application. * All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
- Other sizes, thread pitches or thread per inch (TPI) may be available. Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Dimensions listed are representative. - Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.
30 31
 LK LK

SB8 SB12
n 1 3 b 2 SW n 1 3 b 2 SW
STANDARD NUT & BOLT-STYLE TENSIONERS

STANDARD NUT & BOLT-STYLE TENSIONERS

Bolt-style tensioner Bolt-style tensioner

DxP

DxP
D1

D1
DS

DS
standard H S L
Components:
1 Bolt body
Components:
1 Bolt body
H S L
high strength
2 Jackbolts 2 Jackbolts
SB8 bolt-style tensioners are most often used for applications with tapped holes. The diameter of the bolt-style 3 Hardened washer 3 Hardened washer SB12 bolt-style tensioners have the same features as the SB8 bolt-style tensioners and are designed for
tensioner head is smaller than a nut-style tensioner, so bolt-style tensioners can fit tighter spaces. They feature an higher strength requirements.
external installation/removal hex.

Metric Size Bolt body Jackbolt Hardened washer Height Preload* Torque* Preload capacity* Preload
Metric Size Bolt body Jackbolt Hardened washer Height Preload* Torque*
capacity*
Thread Available pitch 1 2 3 tot nom nom max
Thread Available pitch 1 2 3 tot nom nom max
Part number D P1 P2 P3 D1 H n SW Ds S Lk F M
Part number D P1 P2 P3 D1 H n SW DS S Lk F M
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kN] [Nm] [kN]
SB8-M16x...x.../W M16 2 1.5 1 31 18 4 5 30 3 32 73 14 94 [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kN] [Nm] [kN]
SB8-M20x...x.../W M20 2.5 1.5 1 35 18 6 5 35 4 33 109 14 140 SB12-M20x...x.../W M20 2.5 1.5 1 35 18 8 5 35 4 33 146 14 187
SB8-M24x...x.../W M24 3 2 1.5 41 18 8 5 41 4 33 146 14 187 SB12-M24x...x.../W M24 3 2 1.5 43 24 6 6 43 4 44 202 34 268
SB8-M27x...x.../W M27 3 2 1.5 45 23 6 6 45 5 45 190 32 250 SB12-M27x...x.../W M27 3 2 1.5 47 24 8 6 47 5 45 270 34 357
SB8-M30x...x.../W M30 3.5 2 1.5 50 23 6 6 50 5 45 214 36 286 SB12-M30x...x.../W M30 3.5 2 1.5 50 24 10 6 50 5 45 317 32 427
SB8-M33x...x.../W M33 3.5 2 1.5 57 28 6 8 57 5 52 285 60 380 SB12-M33x...x.../W M33 3.5 2 1.5 57 28 8 8 57 5 52 406 64 539
SB8-M36x…x.../W M36 4 3 1.5 60 28 6 8 60 5 52 333 70 443 SB12-M36x...x.../W M36 4 3 1.5 60 28 10 8 60 5 52 480 60 635
SB8-M39x...x.../W M39 4 3 1.5 63 28 8 8 63 5 52 406 64 540
SB12-M39x...x.../W M39 4 3 1.5 63 28 12 8 63 5 52 570 60 760
SB8-M42x...x.../W M42 4.5 3 1.5 66 28 8 8 66 5 52 457 72 610
SB12-M42x...x.../W M42 4.5 3 1.5 66 28 12 8 66 5 52 645 68 855
SB8-M45x...x.../W M45 4.5 3 1.5 75 37 8 10 75 6 64 535 100 720
SB12-M45x...x.../W M45 4.5 3 1.5 75 37 10 10 75 6 64 760 114 1020
SB8-M48x…x.../W M48 5 3 1.5 78 37 8 10 78 6 64 605 113 800
SB8-M52x...x.../W M52 5 3 2 82 37 10 10 82 6 64 735 110 970 SB12-M48x...x.../W M48 5 3 1.5 78 37 10 10 78 6 64 855 128 1140
SB8-M56x...x.../W M56 5.5 4 2 86 37 10 10 86 6 64 835 125 1120 SB12-M52x...x.../W M52 5 3 2 82 37 12 10 82 6 64 995 124 1320
SB8-M60x...x.../W M60 5.5 4 2 90 37 12 10 90 6 64 985 123 1310 SB12-M56x...x.../W M56 5.5 4 2 86 37 12 10 86 6 64 995 124 1320
SB8-M64x...x.../W M64 6 4 2 103 46 8 14 103 8 83 950 235 1270 SB12-M60x...x.../W M60 5.5 4 2 90 37 14 10 90 6 64 1160 124 1540
SB8-M68x...x.../W M68 6 4 2 107 46 8 14 107 8 83 1090 270 1450 SB12-M64x...x.../W M64 6 4 2 103 46 10 14 103 8 83 1310 260 1740
SB8-M72x...x.../W M72 6 4 2 111 46 10 14 111 8 83 1230 245 1640 SB12-M68x...x.../W M68 6 4 2 107 46 10 14 107 8 83 1480 295 1990
SB8-M76x...x.../W M76 6 4 2 116 46 12 14 116 8 83 1390 230 1870 SB12-M72x...x.../W M72 6 4 2 111 56 12 14 111 8 92 1690 280 2260
SB8-M80x...x.../W M80 6 4 2 120 56 12 14 120 8 92 1570 260 2080
SB12-M76x...x.../W M76 6 4 2 116 56 14 14 116 8 92 1900 270 2540
SB8-M90x...x.../W M90 6 4 2 130 56 16 14 130 8 92 2010 250 2700
SB12-M80x...x.../W M80 6 4 2 120 56 14 14 120 8 92 2110 300 2820
SB8-M100x...x.../W M100 6 4 2 148 60 12 17 148 10 99 2540 520 3370
SB12-M90x...x.../W M90 6 4 2 139 61 12 17 139 10 99 2740 560 3660
SB8-M110x...x.../W M110 6 4 2 158 60 14 17 158 10 99 2850 500 3750
SB8-M120x...x.../W M120 6 4 2 170 64 16 17 170 10 105 3380 520 4500
SB8-M125x...x.../W M125 6 4 2 175 64 16 17 175 10 105 3650 560 4880
SB8-M130x...x.../W M130 6 4 2 180 76 18 17 180 10 118 3950 540 5270
SB8-M140x...x.../W M140 6 4 2 190 76 20 17 190 10 118 4550 560 6100
SB8-M150x...x.../W M150 6 4 2 200 76 20 17 200 10 118 4880 600 6500
SB8-M160x...x.../W M160 6 4 - 210 76 20 17 210 10 118 5280 650 7000

Preload
Imperial Size Bolt body Jackbolt Hardened washer Height Preload* Torque*
Imperial Size Bolt body Jackbolt Hardened washer Height Preload* Torque* Preload capacity* capacity*

Thread Available TPI 1 2 3 tot nom nom Thread Available TPI 1 2 3 tot nom nom max

Part number D P1 P2 P3 D1 H n SW DS S Lk F M Part number D P1 P2 P3 D1 H n SW DS S Lk F M

[in] [in] [in] [in] [in] [in] [in] [LBf] [Lbft] [LBf] [in] [in] [in] [in] [in] [in] [in] [LBf] [Lbft] [LBf]
SB8-075-...x.../W 3/4 10 16 - 1.35 0.70 4 3/16 1.35 0.13 1.38 20,400 14 27,100 SB12-075-...x.../W 3/4 10 16 - 1.35 0.70 6 3/16 1.35 0.13 1.38 26,200 12 34,800
SB8-087-...x.../W 7/8 9 14 - 1.48 0.70 6 3/16 1.48 0.13 1.38 30,600 14 40,700 SB12-087-...x.../W 7/8 9 14 - 1.48 0.70 8 3/16 1.48 0.13 1.38 36,300 13 48,200
SB8-100-...x.../W 1 8 12 14 1.59 0.70 8 3/16 1.59 0.13 1.38 40,800 14 54,200 SB12-100-...x.../W 1 8 12 14 1.73 0.90 6 1/4 1.73 0.16 1.68 47,700 27 63,400
SB8-112-...x.../W 1-1/8 7 8 12 1.83 0.90 6 1/4 1.83 0.16 1.68 48,600 27 63,600 SB12-112-...x.../W 1-1/8 7 8 12 1.85 0.90 8 1/4 1.83 0.16 1.68 60,000 25 79,800
SB8-125-...x.../W 1-1/4 7 8 12 1.98 0.90 8 1/4 1.98 0.16 1.68 64,800 27 86,100 SB12-125-...x.../W 1-1/4 7 8 12 1.98 0.90 12 1/4 1.98 0.16 1.68 77,000 21 102,400
SB8-137-...x.../W 1-3/8 6 8 12 2.23 1.10 6 5/16 2.23 0.20 2.03 73,800 49 98,100 SB12-137-...x.../W 1-3/8 6 8 12 2.23 1.10 10 5/16 2.23 0.20 2.03 90,700 36 120,600
SB8-150-...x.../W 1-1/2 6 8 12 2.35 1.10 8 5/16 2.35 0.20 2.03 88,500 44 117,700 SB12-150-...x.../W 1-1/2 6 8 12 2.35 1.10 12 5/16 2.35 0.20 2.03 100,000 33 133,000
SB8-162-...x.../W 1-5/8 6 8 12 2.47 1.10 10 5/16 2.47 0.20 2.03 106,100 42 141,100 SB12-162-...x.../W 1-5/8 6 8 12 2.47 1.10 12 5/16 2.47 0.20 2.03 120,700 40 160,500
SB8-175-...x.../W 1-3/4 5 8 12 2.73 1.40 8 3/8 2.73 0.25 2.49 119,200 69 158,500 SB12-175-...x.../W 1-3/4 5 8 12 2.73 1.40 12 3/8 2.73 0.25 2.49 131,200 51 174,400
SB8-187-...x.../W 1-7/8 6 8 12 2.98 1.45 8 7/16 2.98 0.25 2.60 145,900 95 194,000 SB12-187-...x.../W 1-7/8 6 8 12 2.98 1.50 10 7/16 2.98 0.25 2.60 167,900 88 223,300
SB8-200-...x.../W 2 4.5 8 12 3.20 1.45 8 7/16 3.20 0.25 2.60 157,300 102 209,200
SB12-200-...x.../W 2 4.5 8 12 3.20 1.50 12 7/16 3.20 0.25 2.60 172,100 74 228,800
SB8-225-...x.../W 2-1/4 4.5 8 12 3.45 1.45 10 7/16 3.45 0.25 2.60 207,100 108 275,400
SB12-225-...x.../W 2-1/4 4.5 8 12 3.45 1.60 12 7/16 3.45 0.25 2.85 239,800 104 318,900
SB8-250-...x.../W 2-1/2 4 8 12 3.94 1.80 8 9/16 3.94 0.31 3.26 220,200 180 292,800
SB12-250-...x.../W 2-1/2 4 8 12 3.95 1.80 10 9/16 3.94 0.31 3.26 280,000 183 372,400
SB8-275-...x.../W 2-3/4 4 8 12 4.20 1.80 10 9/16 4.20 0.31 3.26 272,600 178 362,500
SB12-275-...x.../W 2-3/4 4 8 12 4.20 2.20 12 9/16 4.20 0.31 3.61 348,500 189 463,500
SB8-300-...x.../W 3 4 6 8 4.47 1.80 12 9/16 4.45 0.31 3.26 333,700 182 443,800
SB12-300-...x.../W 3 4 6 8 4.45 2.20 14 9/16 4.45 0.31 3.61 424,700 197 564,800
SB8-325-...x.../W 3-1/4 4 6 8 4.70 2.20 14 9/16 4.70 0.31 3.61 403,000 188 535,900
SB12-325-...x.../W 3-1/4 4 6 8 4.95 2.35 12 5/8 4.95 0.38 4.01 508,300 328 676,000
SB8-350-...x.../W 3-1/2 4 6 8 4.95 2.20 16 9/16 4.95 0.31 3.61 479,500 196 637,700
SB12-350-...x.../W 3-1/2 4 6 8 5.20 2.35 14 5/8 5.20 0.38 4.01 599,500 332 797,300
SB8-375-...x.../W 3-3/4 4 6 8 5.44 2.35 14 5/8 5.44 0.38 4.01 545,700 302 725,700
SB8-400-...x.../W 4 4 6 8 5.70 2.35 16 5/8 5.70 0.38 4.01 630,900 305 839,000
SB8-425-...x.../W 4-1/4 4 6 8 5.94 2.35 16 5/8 5.94 0.38 4.01 741,800 359 986,500 * All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
SB8-450-...x.../W 4-1/2 4 6 8 6.22 2.35 18 5/8 6.22 0.38 4.01 839,600 361 1,116,600 Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
SB8-475-...x.../W 4-3/4 4 6 8 6.44 3.00 18 5/8 6.44 0.38 4.76 907,200 390 1,206,500 - Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.
SB8-500-...x.../W 5 4 6 8 6.70 3.00 20 5/8 6.70 0.38 4.76 1,008,000 390 1,340,600
SB8-525-...x.../W 5-1/4 4 6 8 6.94 3.00 20 5/8 6.94 0.38 4.76 1,008,000 390 1,340,600
SB8-550-...x.../W 5-1/2 4 6 8 7.20 3.00 20 5/8 7.20 0.38 4.76 1,008,000 390 1,340,600
SB8-575-...x.../W 5-3/4 4 6 8 7.44 3.00 20 5/8 7.44 0.38 4.76 1,008,000 390 1,340,600
SB8-600-...x.../W 6 4 6 8 7.69 3.00 20 5/8 7.69 0.38 4.76 1,008,000 390 1,340,600

* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.
32 33
 L L
n 2 SW n 1 3 2 SW

H650 H650T
STANDARD NUT & BOLT-STYLE TENSIONERS

STANDARD NUT & BOLT-STYLE TENSIONERS

Nut-style tensioner Nut-style tensioner

DxP

DxP
D1

DS

D1

DS
Medium temperature Medium temperature, tall
H650 tensioners are used for medium-temperature applications. Preload and torque values are based H S H S H650T tensioners are intended for use where space is limited, and typically replace acorn and castle nuts.
on a bolt stress of 310 MPa (45,000 psi), the value most commonly used by pressure-vessel designers. Preload and torque values are based on a bolt stress of 310 MPa (45,000 psi).
Depending on operating temperature, jackbolt torque and preload may be increased.

Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
Thread Available pitch 1 2 3 tot nom nom Thread Available pitch 1 2 3 tot nom nom
Part number D P1 P2 P3 D1 H n SW Ds S L est F M Part number D P1 P2 P3 D1 H n SW Ds S L est F M
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm]
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] H650T-M24x.../W M24 3 2 1.5 41 28 8 5 40 3 43 0.20 110 11
H650-M20x.../W M20 2.5 1.5 1 38 16 6 5 38 4 34 0.14 75 10 H650T-M27x.../W M27 3 2 1.5 43 28 10 5 43 3 43 0.25 140 11
H650-M22x.../W M22 2.5 1.5 1 41 16 6 5 41 4 34 0.16 94 12 H650T-M30x.../W M30 3.5 2 1.5 46 28 12 5 46 3 43 0.25 175 11
H650-M24x.../W M24 3 2 1.5 44 16 8 5 43 4 34 0.19 110 11 H650T-M33x.../W M33 3.5 2 1.5 49 28 14 5 49 3 43 0.30 215 12
H650-M27x.../W M27 3 2 1.5 50 24 6 6 50 5 45 0.35 140 24 H650T-M36x.../W M36 4 3 1.5 53 28 16 5 53 6 46 0.35 255 12
H650-M30x.../W M30 3.5 2 1.5 53 24 6 6 53 5 45 0.37 175 30 H650T-M39x.../W M39 4 3 1.5 61 38 10 6 61 4 57 0.60 300 30
H650-M33x.../W M33 3.5 2 1.5 59 24 8 6 59 5 45 0.48 215 27 H650T-M42x.../W M42 4.5 3 1.5 64 38 12 6 64 4 57 0.65 350 30
H650-M36x.../W M36 4 3 1.5 66 32 6 8 66 5 57 0.76 255 53 H650T-M45x.../W M45 4.5 3 1.5 67 38 14 6 67 6 59 0.75 405 29
H650-M39x.../W M39 4 3 1.5 70 32 8 8 70 5 57 0.90 300 47 H650T-M48x.../W M48 5 3 1.5 72 38 14 6 70 10 63 0.90 455 33
H650-M42x.../W M42 4.5 3 1.5 75 32 8 8 73 5 57 1.01 350 55 H650T-M52x.../W M52 5 3 2 79 46 12 8 78 5 69 1.25 540 56
H650-M45x.../W M45 4.5 3 1.5 83 38 8 10 81 6 68 1.48 405 75 H650T-M56x.../W M56 5.5 4 2 84 46 14 8 82 10 74 1.45 630 57
H650-M48x.../W M48 5 3 1.5 85 38 8 10 85 6 68 1.50 455 85 H650T-M60x.../W M60 5.5 4 2 90 46 16 8 86 14 78 1.75 740 58
H650-M52x.../W M52 5 3 2 94 38 8 10 89 6 68 1.80 540 100 H650T-M64x.../W M64 6 4 2 96 62 12 10 96 18 102 2.75 830 105
H650-M56x.../W M56 5.5 4 2 100 38 8 10 95 6 68 2.00 630 120 H650T-M72x.../W M72 6 4 2 106 62 16 10 105 6 90 2.80 1070 100
H650-M60x.../W M60 5.5 4 2 107 38 10 10 100 6 68 2.30 740 110 H650T-M76x.../W M76 6 4 2 114 62 16 10 112 12 96 3.50 1200 110
H650-M64x.../W M64 6 4 2 113 53 8 14 112 8 92 3.65 830 205 H650T-M80x.../W M80 6 4 2 118 62 18 10 112 15 99 3.70 1330 110
H650-M72x.../W M72 6 4 2 120 56 8 14 120 8 92 4.00 1070 265 H650T-M90x.../W M90 6 4 2 135 80 14 14 135 9 117 6.10 1730 245
H650-M76x.../W M76 6 4 2 132 56 12 14 127 8 92 5.10 1200 200 H650T-M100x.../W M100 6 4 2 149 80 16 14 144 19 127 7.85 2170 270
H650-M80x.../W M80 6 4 2 132 56 12 14 127 8 92 4.80 1330 220
H650-M90x.../W M90 6 4 2 145 59 16 14 140 8 99 6.00 1730 215
H650-M100x.../W M100 6 4 2 164 61 16 14 152 8 99 7.80 2170 270
H650-M110x.../W M110 6 4 2 177 79 12 17 172 10 125 11.40 2650 550
H650-M120x.../W M120 6 4 2 189 81 16 17 179 10 125 13.00 3210 500
H650-M125x.../W M125 6 4 2 194 81 16 17 190 10 125 13.50 3470 540

Imperial Size Nut body Jackbolts Hardened washer Height Weight Preload* Torque* Imperial Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
Thread Available TPI 1 2 3 tot nom nom Thread Available TPI 1 2 3 tot nom nom
Part number D P1 P2 P3 D1 H n SW Ds S L est F M Part number D P1 P2 P3 D1 H n SW Ds S L est F M
[in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft] [in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft]
H650-075-.../W 3/4 10 16 - 1.47 0.70 4 3/16 1.50 0.13 1.38 0.31 13,950 9 H650T-100-.../W 1 8 12 14 1.67 1.10 8 3/16 1.67 0.13 1.72 0.53 27,260 9
H650-087-.../W 7/8 9 14 - 1.60 0.70 6 3/16 1.63 0.13 1.38 0.34 19,790 9 H650T-112-.../W 1-1/8 7 8 12 1.80 1.10 8 3/16 1.75 0.13 1.72 0.58 35,570 12
H650-100-.../W 1 8 12 14 1.90 0.93 6 1/4 2.00 0.19 1.71 0.68 27,260 15 H650T-125-.../W 1-1/4 7 8 12 1.92 1.10 12 3/16 1.88 0.13 1.72 0.64 44,990 10
H650-112-.../W 1-1/8 7 8 12 2.08 0.93 6 1/4 2.13 0.19 1.71 0.79 35,570 20 H650T-137-.../W 1-3/8 6 8 12 2.08 1.10 14 3/16 2.05 0.25 1.84 0.80 55,510 11
H650-125-.../W 1-1/4 7 8 12 2.25 0.94 8 1/4 2.38 0.19 1.71 0.92 44,990 19 H650T-150-.../W 1-1/2 6 8 12 2.34 1.50 10 1/4 2.29 0.15 2.24 1.17 67,130 22
H650-137-.../W 1-3/8 6 8 12 2.46 1.20 6 5/16 2.50 0.19 2.12 1.40 55,510 37 H650T-162-.../W 1-5/8 6 8 12 2.47 1.50 12 1/4 2.47 0.15 2.24 1.26 79,860 22
H650-150-.../W 1-1/2 6 8 12 2.70 1.20 8 5/16 2.75 0.19 2.12 1.70 67,130 33 H650T-175-.../W 1-3/4 5 8 12 2.62 1.50 14 1/4 2.60 0.25 2.34 1.46 93,700 22
H650-162-.../W 1-5/8 6 8 12 2.96 1.20 8 5/16 2.88 0.19 2.12 2.01 79,860 40 H650T-187-.../W 1-7/8 6 8 12 2.79 1.50 16 1/4 2.75 0.38 2.47 1.75 108,600 22
H650-175-.../W 1-3/4 5 8 12 3.08 1.42 8 3/8 3.13 0.25 2.49 2.53 93,700 54 H650T-200-.../W 2 4.5 8 12 3.06 1.80 12 5/16 3.00 0.20 2.73 2.45 124,700 41
H650-187-.../W 1-7/8 6 8 12 3.59 1.60 8 7/16 3.50 0.25 2.85 4.07 108,600 71 H650T-225-.../W 2-1/4 4.5 8 12 3.37 1.80 16 5/16 3.26 0.40 2.93 3.12 160,100 40
H650-200-.../W 2 4.5 8 12 3.59 1.60 8 7/16 3.50 0.25 2.85 3.87 124,700 81 H650T-250-.../W 2-1/2 4 8 12 3.75 2.10 16 3/8 3.68 0.40 3.29 4.38 199,900 58
H650-225-.../W 2-1/4 4.5 8 12 3.95 1.60 8 7/16 3.75 0.25 2.85 4.51 160,100 104 H650T-275-.../W 2-3/4 4 8 12 4.13 2.50 14 7/16 4.12 0.25 3.65 5.92 244,100 91
H650-250-.../W 2-1/2 4 8 12 4.45 2.10 8 9/16 4.50 0.31 3.61 7.82 199,900 163 H650T-300-.../W 3 4 6 8 4.49 2.50 16 7/16 4.40 0.50 3.90 7.50 292,800 95
H650-275-.../W 2-3/4 4 8 12 4.70 2.10 8 9/16 4.75 0.31 3.61 8.36 244,100 199 H650T-325-.../W 3-1/4 4 6 8 4.87 2.50 18 7/16 4.65 0.70 4.10 9.21 345,900 100
H650-300-.../W 3 4 6 8 5.20 2.10 12 9/16 5.00 0.31 3.61 10.30 292,800 159 H650T-350-.../W 3-1/2 4 6 8 5.30 3.15 14 9/16 5.19 0.35 4.60 12.69 403,300 188
H650-325-.../W 3-1/4 4 6 8 5.45 2.20 12 9/16 5.00 0.31 3.61 11.04 345,900 188 H650T-375-.../W 3-3/4 4 6 8 5.62 3.15 16 9/16 5.60 0.60 4.85 15.11 465,300 189
H650-350-.../W 3-1/2 4 6 8 5.70 2.30 16 9/16 5.50 0.31 3.87 12.62 403,300 164 H650T-400-.../W 4 4 6 8 5.97 3.15 18 9/16 5.69 0.80 5.05 17.26 531,600 192
H650-375-.../W 3-3/4 4 6 8 6.20 2.40 16 9/16 5.50 0.31 3.87 15.08 465,300 189
* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
H650-400-.../W 4 4 6 8 6.45 2.60 18 9/16 6.00 0.31 4.19 17.31 531,600 192 Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
H650-425-.../W 4-1/4 4 6 8 6.95 3.00 16 5/8 6.40 0.38 4.76 23.41 602,300 291 - Other sizes, thread pitches or thread per inch (TPI) may be available.
H650-450-.../W 4-1/2 4 6 8 7.20 3.00 16 5/8 6.65 0.38 4.76 24.44 677,500 328 - Dimensions listed are representative.
H650-475-.../W 4-3/4 4 6 8 7.45 3.20 18 5/8 6.90 0.38 5.06 27.13 757,100 326
H650-500-.../W 5 4 6 8 7.70 3.30 20 5/8 7.15 0.38 5.06 28.83 841,100 325

* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.

34 35
 REACTIVE SIDE SOLUTIONS
REACTIVE SIDE
SOLUTIONS
Superbolt developed the Flexnut for
through-hole applications. Flexnuts bring
the advantages of MJT-type elasticity to the
reactive side of the joint.

Flexnuts are designed to flex out at the

bottom and flex in toward the top of the nut.
This distributes the bolt load along many
threads, adds elasticity, and prevents stress
concentrations in the first few threads.

INSTALLATION TIP: Flexnuts are reactive

nuts, designed to be applied opposite
Superbolt tensioners. They are never
torqued directly to achieve preload.

Get design flexibility during installation

Our design capabilities and quick service give you unequaled flexibility,
for trouble-free installation.

36 37
 SX8 SX12
L SW
L SW 1 2
1 2

Flexnut series Flexnut series

REACTIVE SIDE SOLUTIONS

REACTIVE SIDE SOLUTIONS

≤ M72
≤ M72 3.00˝

standard high strength

DxP
3.00˝

D1

DS
DxP
D1

DS
≥ M76
≥ M76
3.25˝
3.25˝
SX8 series Flexnuts are designed to flex within the common bolt-stress range for most Superbolt tensioners. SX12 series Flexnuts are designed for use with SB12 bolt-style tensioners, or in conjunction
They are ideal for reducing stress concentrations in the threads, and for adding flexibility to joints. SX8 series with through-stud and CY nut-style tensioners.
Flexnuts are suited for use with SB8 bolt-style tensioners or in conjunction with through-studs and MT 6x ø12 x 12 6x ø12 x 12
H S H S
nut-style tensioners.

Metric Size Nut body Hardened washer Height Weight Preload capacity Metric Size Nut body Hardened washer Height Weight Preload capacity

Thread Available pitch 1 2 tot est max Thread Available pitch 1 2 tot est max

Part number D P1 P2 P3 D1 H SW Ds S L Part number D P1 P2 P3 D1 H SW Ds S L

[mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN]
SX8-M20x.../W M20 2.5 1.5 1 35 17 27 38 4 21 0.10 140 SX12-M20x.../W M20 2.5 1.5 1 35 20 27 38 4 24 0.10 187
SX8-M24x.../W M24 3 2 1.5 42 20 33 45 4 24 0.15 187 SX12-M24x.../W M24 3 2 1.5 42 24 33 45 4 28 0.20 285
SX8-M27x.../W M27 3 2 1.5 47 23 36 50 5 28 0.20 285 SX12-M27x.../W M27 3 2 1.5 47 27 36 50 5 32 0.25 380
SX8-M30x.../W M30 3.5 2 1.5 52 25 39 56 5 30 0.25 286 SX12-M30x.../W M30 3.5 2 1.5 52 30 39 56 5 35 0.35 427
SX8-M33x.../W M33 3.5 2 1.5 57 28 42 63 6 34 0.40 380 SX12-M33x.../W M33 3.5 2 1.5 57 33 42 63 6 39 0.45 610
SX8-M36x.../W M36 4 3 1.5 62 31 48 69 6 37 0.50 460 SX12-M36x.../W M36 4 3 1.5 62 36 48 69 6 42 0.60 675
SX8-M39x.../W M39 4 3 1.5 66 33 51 72 6 39 0.60 610 SX12-M39x.../W M39 4 3 1.5 66 39 51 72 6 45 0.70 760
SX8-M42x.../W M42 4.5 3 1.5 73 36 56 76 6 42 0.75 610 SX12-M42x.../W M42 4.5 3 1.5 73 42 56 76 6 48 0.90 915
SX8-M45x.../W M45 4.5 3 1.5 77 38 57 81 6 44 0.85 935 SX12-M45x.../W M45 4.5 3 1.5 77 45 57 81 6 51 1.00 1170
SX8-M48x.../W M48 5 3 1.5 83 41 64 86 6 47 1.10 935 SX12-M48x.../W M48 5 3 1.5 83 48 64 86 6 54 1.30 1170
SX8-M52x.../W M52 5 3 2 88 44 67 94 6 50 1.25 970 SX12-M52x.../W M52 5 3 2 88 52 67 94 6 58 1.50 1400
SX8-M56x.../W M56 5.5 4 2 97 48 72 100 6 54 1.60 1120 SX12-M56x.../W M56 5.5 4 2 97 56 72 100 6 62 1.95 1400
SX8-M60x.../W M60 5.5 4 2 105 51 76 110 8 59 2.05 1310 SX12-M60x.../W M60 5.5 4 2 105 60 76 106 8 68 2.45 2100
SX8-M64x.../W M64 6 4 2 111 54 80 120 8 62 2.35 1690 SX12-M64x.../W M64 6 4 2 111 64 80 120 8 72 2.85 2100
SX8-M72x.../W M72 6 4 2 125 61 90 130 8 69 3.15 1690 SX12-M72x.../W M72 6 4 2 125 72 90 130 8 80 3.90 2530
SX8-M76x.../W M76 6 4 2 132 64 __* 138 10 74 4.20 2530 SX12-M76x.../W M76 6 4 2 132 76 __* 138 10 86 5.05 3380
SX8-M80x.../W M80 6 4 2 139 68 __* 145 10 78 5.20 2530 SX12-M80x.../W M80 6 4 2 139 80 __* 145 10 90 6.15 3380
SX8-M90x.../W M90 6 4 2 156 76 __* 160 10 86 7.10 3380 SX12-M90x.../W M90 6 4 2 156 90 __* 160 10 100 8.50 4200
SX8-M100x.../W M100 6 4 2 173 85 __* 180 10 95 9.00 3380 SX12-M100x.../W M100 6 4 2 173 100 __* 180 10 110 12.50 4900
SX8-M110x.../W M110 6 4 2 191 94 __* 202 10 104 13.00 4200 SX12-M110x.../W M110 6 4 2 191 110 __* 202 10 120 15.50 5600
SX8-M120x.../W M120 6 4 2 208 102 __* 215 12 114 16.75 5600 SX12-M120x.../W M120 6 4 2 208 120 __* 215 12 132 20.00 6300
SX8-M125x.../W M125 6 4 2 218 108 __* 227 12 120 19.50 5600 SX12-M125x.../W M125 6 4 2 218 125 __* 227 12 137 22.75 6300
SX8-M130x.../W M130 6 4 2 226 111 __* 234 12 123 21.25 6300 SX12-M130x.../W M130 6 4 2 226 111 __* 234 12 123 21.25 7000
SX8-M140x.../W M140 6 4 2 243 119 __* 253 12 131 26.25 7000 SX12-M140x.../W M140 6 4 2 243 119 __* 253 12 131 26.25 7700
SX8-M150x.../W M150 6 4 2 260 127 __* 271 12 139 31.75 7000 SX12-M150x.../W M150 6 4 2 260 127 __* 271 12 139 31.75 7700
SX8-M160x.../W M160 6 4 - 278 136 __* 290 12 148 38.75 8400 SX12-M160x.../W M160 6 4 - 278 136 __* 290 12 148 38.75 8400

Imperial Size Nut body Hardened washer Height Weight Preload capacity Imperial Size Nut body Hardened washer Height Weight Preload capacity

Thread Available TPI 1 2 tot est max Thread Available TPI 1 2 tot est max
Part number D P1 P2 P3 D1 H SW Ds S L Part number D P1 P2 P3 D1 H SW Ds S L
[in] [in] [in] [in] [in] [in] [Lb] [LBf] [in] [in] [in] [in] [in] [in] [Lb] [LBf]
SX8-075-.../W 3/4 10 16 - 1.30 0.64 1 1.50 0.13 0.77 0.17 27,200 SX12-075-.../W 3/4 10 16 - 1.30 0.75 1 1.50 0.13 0.88 0.15 40,800
SX8-087-.../W 7/8 9 14 - 1.52 0.74 1-1/8 1.62 0.13 0.87 0.23 40,800 SX12-087-.../W 7/8 9 14 - 1.52 0.88 1-1/8 1.62 0.13 1.01 0.29 54,400
SX8-100-.../W 1 8 12 14 1.73 0.85 1-5/16 2.00 0.16 1.01 0.38 64,800 SX12-100-.../W 1 8 12 14 1.73 1.00 1-5/16 2.00 0.16 1.16 0.47 64,800
SX8-112-.../W 1-1/8 7 8 12 1.95 0.96 1-1/2 2.12 0.16 1.12 0.52 64,800 SX12-112-.../W 1-1/8 7 8 12 1.95 1.13 1-1/2 2.12 0.16 1.29 0.64 86,400
SX8-125-.../W 1-1/4 7 8 12 2.17 1.06 1-5/8 2.50 0.19 1.25 0.73 86,400 SX12-125-.../W 1-1/4 7 8 12 2.17 1.25 1-5/8 2.50 0.19 1.44 0.90 102,410
SX8-137-.../W 1-3/8 6 8 12 2.38 1.17 1-3/4 2.50 0.19 1.36 0.87 98,400 SX12-137-.../W 1-3/8 6 8 12 2.38 1.38 1-3/4 2.50 0.19 1.57 1.08 131,200
SX8-150-.../W 1-1/2 6 8 12 2.60 1.28 2 3.00 0.25 1.53 1.33 131,200 SX12-150-.../W 1-1/2 6 8 12 2.60 1.50 2 3.00 0.25 1.75 1.59 172,800
SX8-162-.../W 1-5/8 6 8 12 2.81 1.38 2-1/8 3.00 0.25 1.63 1.54 141,100 SX12-162-.../W 1-5/8 6 8 12 2.81 1.63 2-1/8 3.00 0.25 1.88 1.90 172,800
SX8-175-.../W 1-3/4 5 8 12 3.03 1.49 2-1/4 3.25 0.25 1.74 1.85 172,800 SX12-175-.../W 1-3/4 5 8 12 3.03 1.75 2-1/4 3.25 0.25 2.00 2.28 259,200
SX8-187-.../W 1-7/8 6 8 12 3.25 1.59 2-1/2 3.50 0.25 1.84 2.54 233,600 SX12-187-.../W 1-7/8 6 8 12 3.25 1.88 2-1/2 3.50 0.25 2.13 2.91 233,600
SX8-200-.../W 2 4.5 8 12 3.46 1.70 2-5/8 3.75 0.25 1.95 2.76 233,600 SX12-200-.../W 2 4.5 8 12 3.46 2.00 2-5/8 3.75 0.25 2.25 3.43 350,400
SX8-225-.../W 2-1/4 4.5 8 12 3.90 1.91 3 4.22 0.31 2.22 4.07 275,400 SX12-225-.../W 2-1/4 4.5 8 12 3.90 2.25 3 4.22 0.31 2.56 5.01 350,400
SX8-250-.../W 2-1/2 4 8 12 4.33 2.13 3-1/4 4.70 0.31 2.44 5.31 380,800 SX12-250-.../W 2-1/2 4 8 12 4.33 2.50 3-1/4 4.70 0.31 2.81 6.51 571,200
SX8-275-.../W 2-3/4 4 8 12 4.76 2.34 3-5/8 4.95 0.31 2.65 7.46 380,800 SX12-275-.../W 2-3/4 4 8 12 4.76 2.75 3-5/8 4.95 0.31 3.06 8.42 571,200
SX8-300-.../W 3 4 6 8 5.23 2.55 4 5.45 0.38 2.93 9.18 571,200 SX12-300-.../W 3 4 6 8 5.20 3.00 4 5.45 0.38 3.38 11.33 761,600
SX8-325-.../W 3-1/4 4 6 8 5.63 2.76 __* 5.95 0.38 3.14 12.08 571,200 SX12-325-.../W 3-1/4 4 6 8 5.63 3.25 __* 5.94 0.38 3.63 14.93 761,600
SX8-350-.../W 3-1/2 4 6 8 6.06 2.98 __* 6.45 0.38 3.36 14.98 761,600 SX12-350-.../W 3-1/2 4 6 8 6.06 3.50 __* 6.45 0.38 3.88 18.27 856,800
SX8-375-.../W 3-3/4 4 6 8 6.50 3.19 __* 6.94 0.38 3.57 18.36 761,600 SX12-375-.../W 3-3/4 4 6 8 6.50 3.75 __* 6.95 0.38 4.13 22.61 856,800
SX8-400-.../W 4 4 6 8 6.93 3.40 __* 7.45 0.43 3.83 22.55 856,800 SX12-400-.../W 4 4 6 8 6.93 4.00 __* 7.45 0.43 4.43 27.65 952,000
SX8-425-.../W 4-1/4 4 6 8 7.36 3.61 __* 7.95 0.43 4.04 28.55 1,075,200 SX12-425-.../W 4-1/4 4 6 8 7.36 4.25 __* 7.95 0.43 4.68 32.97 1,209,600
SX8-450-.../W 4-1/2 4 6 8 7.79 3.83 __* 8.20 0.43 4.26 30.98 1,116,600 SX12-450-.../W 4-1/2 4 6 8 7.79 4.50 __* 8.20 0.43 4.93 38.42 1,209,600
SX8-475-.../W 4-3/4 4 6 8 8.23 4.04 __* 8.70 0.43 4.47 38.95 1,209,600 SX12-475-.../W 4-3/4 4 6 8 8.23 4.75 __* 8.70 0.43 5.18 45.09 1,344,000
SX8-500-.../W 5 4 6 8 8.66 4.25 __* 9.45 0.50 4.75 46.80 1,344,000 SX12-500-.../W 5 4 6 8 8.66 5.00 __* 9.45 0.50 5.50 53.75 1,344,000
SX8-525-.../W 5-1/4 4 6 8 9.09 4.46 __* 9.45 0.50 4.96 52.48 1,478,400 SX12-525-.../W 5-1/4 4 6 8 9.09 5.25 __* 9.45 0.50 5.75 60.81 1,478,400
SX8-550-.../W 5-1/2 4 6 8 9.53 4.68 __* 9.95 0.50 5.18 56.03 1,478,400 SX12-550-.../W 5-1/2 4 6 8 9.53 5.50 __* 9.95 0.50 6.00 69.67 1,478,400
SX8-575-.../W 5-3/4 4 6 8 9.96 4.89 __* 10.45 0.50 5.39 65.49 1,612,800 SX12-575-.../W 5-3/4 4 6 8 9.96 5.75 __* 10.45 0.50 6.25 79.37 1,612,800
SX8-600-.../W 6 4 6 8 10.39 5.10 __* 10.95 0.50 5.60 72.84 1,612,800 SX12-600-.../W 6 4 6 8 10.39 6.00 __* 10.95 0.50 6.50 89.75 1,612,800

- Other sizes, thread pitches or thread per inch (TPI) may be available. - Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative. - Dimensions listed are representative.
* Indicates a round shape instead of hex shape of the nut. * Indicates a round shape instead of hex shape of the nut.
38 39
 COMMON APPLICATIONS
Hydraulic cylinders
Pipe flanges

COMPACT/LOW PROFILE
Shaft mounts
Gearboxes
Machine tools
Presses
Pinion stands
Bearings
Mill motors
Brake wheels

COMPACT/LOW-PROFILE
TENSIONERS
Height restrictions in applications make
it difficult to preload joints adequately.
That’s why Superbolt developed our range
of low-profile tensioners, bringing all
the advantages of a traditional MJT in a
compact design.
The SJ and SJX series can be used in general
applications where height is a concern.
SSJX bolt-style tensioners are designed to
fit inside the same low-profile counterbore
as standard socket-head cap screws.
The NM and NI series are designed as direct
replacements for many standard series
bearing locknuts and include a locking
side-screw to secure tensioners to shafts.
You’re never limited with Superbolt technology. The SMX series are designed as a direct
Over the decades, Superbolt and the Nord-Lock Group have solved millions replacement for mill motor armature nuts.
of bolting challenges across a multitude of industries. We work closely with
customers all over the world to ensure safety and reliability on the job.

40 41
 n 1 3 2 SW n 1 3 2 SW

SJ SJX

DxP
DxP
D1

DS

DS
D1
Jamnut tensioner Jamnut tensioner
COMPACT/LOW PROFILE

COMPACT/LOW PROFILE
standard low-profile high strength low-profile
SJ jamnuts are used for applications involving limited headroom or limited thread engagement. H S H S SJX jamnuts are designed for restrictive space applications with higher preload requirements.
L L They utilize larger, moly-lubricated set-screws to reduce torque requirements.

Preload Preload
Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
capacity* capacity*
Thread Available pitch 1 2 3 tot nom nom max
Part number D P1 P2 P3 D1 H n SW Ds S L est F M Thread Available pitch 1 2 3 tot nom nom max
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN] Part number D P1 P2 P3 D1 H n SW Ds S L est F M
SJ-M20x.../W M20 2.5 1.5 1 43 15 6 4 43 4 19 0.15 67 11 91 [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN]
SJ-M22x.../W M22 2.5 1.5 1 47 16 8 4 45 5 21 0.20 81 10 105 SJX-M20x.../W M20 2.5 1.5 1 44 18 4 4 43 4 22 0.21 86 11 115
SJ-M24x.../W M24 3 2 1.5 50 16 8 4 48 5 21 0.20 89 11 120 SJX-M22x.../W M22 2.5 1.5 1 47 18 4 4 45 5 23 0.24 86 11 115
SJ-M27x.../W M27 3 2 1.5 53 16 10 4 50 5 21 0.25 100 10 130 SJX-M24x.../W M24 3 2 1.5 50 18 6 4 48 5 23 0.27 130 11 175
SJ-M30x.../W M30 3.5 2 1.5 60 21 8 5 59 5 26 0.40 135 21 180 SJX-M27x.../W M27 3 2 1.5 56 18 8 4 50 5 23 0.32 170 11 215
SJ-M33x.../W M33 3.5 2 1.5 63 22 10 5 63 5 27 0.40 155 19 200 SJX-M30x.../W M30 3.5 2 1.5 63 23 8 5 59 5 28 0.52 215 17 290
SJ-M36x.../W M36 4 3 1.5 69 28 8 6 69 5 33 0.65 190 35 245 SJX-M33x.../W M33 3.5 2 1.5 69 23 10 5 63 5 28 0.61 270 17 360
SJ-M39x.../W M39 4 3 1.5 75 28 10 6 75 5 33 0.80 255 38 335 SJX-M36x.../W M36 4 3 1.5 74 30 8 6 69 5 35 0.91 345 32 450
SJ-M42x.../W M42 4.5 3 1.5 81 28 12 6 78 5 33 0.90 315 39 420 SJX-M39x.../W M39 4 3 1.5 80 30 10 6 75 5 35 1.04 405 30 530
SJ-M45x.../W M45 4.5 3 1.5 88 28 12 6 81 6 34 1.00 315 39 420 SJX-M42x.../W M42 4.5 3 1.5 88 30 10 6 78 5 35 1.22 485 36 640
SJ-M48x.../W M48 5 3 1.5 101 31 8 8 94 6 37 1.65 380 94 500 SJX-M45x.../W M45 4.5 3 1.5 90 30 10 6 81 6 36 1.33 510 38 670
SJ-M52x.../W M52 5 3 2 101 33 8 8 94 6 39 1.65 380 94 500 SJX-M48x.../W M48 5 3 1.5 101 38 8 8 94 6 44 2.10 620 75 820
SJ-M56x.../W M56 5.5 4 2 113 33 12 8 100 6 39 2.05 570 94 760 SJX-M52x.../W M52 5 3 2 107 38 10 8 106 6 44 2.37 700 68 920
SJ-M60x.../W M60 5.5 4 2 117 33 12 8 106 6 39 2.15 570 94 760 SJX-M56x.../W M56 5.5 4 2 113 38 10 8 106 6 44 2.57 760 74 1010
SJ-M64x.../W M64 6 4 2 119 33 12 8 120 8 41 2.45 570 94 760 SJX-M60x.../W M60 5.5 4 2 120 38 10 8 106 6 44 3.04 860 83 1130
SJ-M68x.../W M68 6 4 2 138 38 12 10 125 8 46 3.60 710 145 950 SJX-M64x.../W M64 6 4 2 126 42 12 8 120 8 50 3.52 1110 90 1480
SJ-M72x.../W M72 6 4 2 151 38 12 10 125 8 46 4.50 910 185 1200 SJX-M68x.../W M68 6 4 2 145 46 12 10 125 8 54 5.11 1330 130 1740
SJ-M76x.../W M76 6 4 2 151 38 12 10 138 8 46 4.35 860 175 1130 SJX-M72x.../W M72 6 4 2 151 46 12 10 138 8 54 5.61 1380 135 1840
SJ-M80x.../W M80 6 4 2 158 38 12 10 145 10 48 4.95 910 185 1200 SJX-M76x.../W M76 6 4 2 158 52 12 10 138 8 60 6.61 1900 185 2510
SJ-M90x.../W M90 6 4 2 170 51 12 12 160 10 61 7.20 1160 280 1530 SJX-M80x.../W M80 6 4 2 162 52 12 10 145 10 62 7.06 1900 185 2510
SJ-M100x.../W M100 6 4 2 177 53 12 12 180 10 63 7.75 1160 280 1530 SJX-M90x.../W M90 6 4 2 177 64 12 12 160 10 74 9.98 2210 260 2930
SJ-M110x.../W M110 6 4 2 190 59 16 12 190 10 69 9.25 1550 280 2040 SJX-M100x.../W M100 6 4 2 182 76 14 12 172 10 86 11.97 2730 275 3620
SJ-M120x.../W M120 6 4 2 202 59 16 12 202 10 69 10.25 1550 280 2040 SJX-M110x.../W M110 6 4 2 202 79 16 12 190 10 89 15.16 3340 295 4470
SJ-M125x.../W M125 6 4 2 205 59 16 12 202 10 69 10.25 1550 280 2040 SJX-M120x.../W M120 6 4 2 208 79 16 12 202 10 89 15.42 3340 295 4470
SJ-M130x.../W M130 6 4 2 210 59 16 12 202 10 69 10.50 1550 280 2040 SJX-M125x.../W M125 6 4 2 214 79 16 12 202 10 89 16.03 3340 295 4470
SJ-M140x.../W M140 6 4 2 221 59 16 12 215 12 71 11.75 1550 280 2040 SJX-M130x.../W M130 6 4 2 214 91 18 12 202 10 101 16.86 3760 295 5030
SJ-M150x.../W M150 6 4 2 230 59 16 12 225 12 71 12.25 1550 280 2040 SJX-M140x.../W M140 6 4 2 221 91 18 12 215 12 103 18.60 3760 295 5030
SJ-M160x.../W M160 6 4 - 240 59 16 12 240 12 71 13.25 1550 280 2040 SJX-M150x.../W M150 6 4 2 231 95 20 12 225 12 107 18.98 4110 290 5450
SJX-M160x.../W M160 6 4 - 241 95 20 12 240 12 107 21.32 4110 290 5450
Preload Hardened Preload
Imperial Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Imperial Size Nut body Jackbolt Height Weight Preload* Torque *
capacity* washer capacity*
Thread Available TPI 1 2 3 tot nom nom max
Thread Available TPI 1 2 3 tot nom nom max
Part number D P1 P2 P3 D1 H n SW Ds S L est F M
Part number D P1 P2 P3 D1 H n SW Ds S L est F M
[in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft] [LBf]
SJ-075-.../W 3/4 10 16 - 1.70 0.55 6 5/32 1.63 0.13 0.68 0.34 16,300 9 21,700 [in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft] [LBf]
SJ-087-.../W 7/8 9 14 - 1.84 0.60 8 5/32 1.75 0.13 0.73 0.40 21,700 9 28,900 SJX-075-.../W 3/4 10 16 - 1.70 0.70 4 5/32 1.63 0.13 0.83 0.40 18,100 8 24,100
SJ-100-.../W 1 8 12 14 1.95 0.60 8 5/32 2.00 0.19 0.79 0.49 21,700 9 28,900 SJX-087-.../W 7/8 9 14 - 1.84 0.70 6 5/32 1.75 0.13 0.83 0.50 25,100 7 33,400
SJ-112-.../W 1-1/8 7 8 12 2.20 0.80 8 3/16 2.13 0.19 0.99 0.67 30,000 15 40,000 SJX-100-.../W 1 8 12 14 2.10 0.70 8 5/32 2.00 0.19 0.89 0.60 33,100 7 44,000
SJ-125-.../W 1-1/4 7 8 12 2.34 0.80 8 3/16 2.38 0.19 0.99 0.85 30,000 15 40,000 SJX-112-.../W 1-1/8 7 8 12 2.34 0.90 6 3/16 2.13 0.19 1.09 0.90 43,700 14 58,100
SJ-137-.../W 1-3/8 6 8 12 2.45 0.92 10 3/16 2.50 0.19 1.11 0.96 37,500 15 50,000 SJX-125-.../W 1-1/4 7 8 12 2.47 0.95 8 3/16 2.38 0.19 1.14 1.10 55,700 14 74,100
SJ-150-.../W 1-1/2 6 8 12 2.95 1.10 8 1/4 2.75 0.19 1.29 1.67 56,900 37 75,900 SJX-137-.../W 1-3/8 6 8 12 2.72 0.95 10 3/16 2.50 0.19 1.14 1.30 69,300 14 92,200
SJ-162-.../W 1-5/8 6 8 12 3.20 1.10 10 1/4 2.88 0.19 1.29 1.92 71,200 37 94,900 SJX-150-.../W 1-1/2 6 8 12 3.20 1.20 8 1/4 2.75 0.19 1.39 2.30 84,000 27 111,700
SJ-175-.../W 1-3/4 5 8 12 3.45 1.10 12 1/4 3.45 0.25 1.35 2.33 85,400 37 113,900 SJX-162-.../W 1-5/8 6 8 12 3.45 1.20 8 1/4 2.88 0.19 1.39 2.70 100,800 33 134,100
SJ-187-.../W 1-7/8 6 8 12 3.59 1.10 12 1/4 3.59 0.25 1.35 2.57 85,400 37 113,900 SJX-175-.../W 1-3/4 5 8 12 3.59 1.20 10 1/4 3.13 0.25 1.45 2.80 118,800 31 158,000
SJ-200-.../W 2 4.5 8 12 3.95 1.30 8 5/16 3.50 0.25 1.55 3.63 91,400 75 121,900 SJX-187-.../W 1-7/8 6 8 12 3.72 1.30 12 1/4 3.50 0.25 1.55 3.20 138,000 30 183,500
SJ-225-.../W 2-1/4 4.5 8 12 4.45 1.30 12 5/16 4.00 0.25 1.55 4.57 137,100 75 182,800 SJX-200-.../W 2 4.5 8 12 4.20 1.50 8 5/16 3.72 0.25 1.75 4.90 159,000 64 211,500
SJ-250-.../W 2-1/2 4 8 12 4.70 1.30 12 5/16 4.50 0.31 1.61 5.25 137,100 75 182,800 SJX-225-.../W 2-1/4 4.5 8 12 4.70 1.50 10 5/16 4.00 0.25 1.75 6.10 205,200 66 272,900
SJ-275-.../W 2-3/4 4 8 12 5.45 1.50 12 3/8 4.75 0.31 1.81 7.65 165,800 108 221,100 SJX-250-.../W 2-1/2 4 8 12 4.95 1.65 12 5/16 4.50 0.31 1.96 7.41 257,400 69 342,300
SJ-300-.../W 3 4 6 8 5.95 1.90 12 1/2 5.25 0.38 2.28 12.55 226,300 179 301,700 SJX-275-.../W 2-3/4 4 8 12 5.70 1.80 12 3/8 4.75 0.31 2.11 11.00 315,600 107 419,800
SJ-325-.../W 3-1/4 4 6 8 6.20 1.90 12 1/2 5.50 0.38 2.28 12.10 226,300 179 301,700 SJX-300-.../W 3 4 6 8 6.20 2.15 12 1/2 5.25 0.38 2.53 15.00 379,200 137 504,300
SJ-350-.../W 3-1/2 4 6 8 6.45 1.90 12 1/2 5.75 0.38 2.28 12.72 226,300 179 301,700 SJX-325-.../W 3-1/4 4 6 8 6.70 2.15 12 1/2 5.50 0.38 2.53 17.00 449,400 162 597,700
SJ-375-.../W 3-3/4 4 6 8 6.70 2.00 12 1/2 6.00 0.38 2.38 15.02 226,300 179 301,700 SJX-350-.../W 3-1/2 4 6 8 6.95 2.30 12 1/2 5.75 0.38 2.68 19.00 511,900 185 680,800
SJ-400-.../W 4 4 6 8 6.95 2.00 12 1/2 6.65 0.38 2.38 15.89 226,300 179 301,700 SJX-375-.../W 3-3/4 4 6 8 7.20 2.50 14 1/2 6.00 0.38 2.88 22.00 606,600 189 806,800
SJ-425-.../W 4-1/4 4 6 8 7.20 2.30 16 1/2 6.90 0.38 2.68 16.63 301,700 179 402,200 SJX-400-.../W 4 4 6 8 7.45 3.10 12 9/16 6.65 0.38 3.48 29.00 694,200 289 923,300
SJ-450-.../W 4-1/2 4 6 8 7.45 2.30 16 1/2 7.40 0.38 2.68 19.07 301,700 179 402,200 SJX-425-.../W 4-1/4 4 6 8 7.95 3.10 14 9/16 6.90 0.38 3.48 33.00 787,200 281 1,047,000
SJ-475-.../W 4-3/4 4 6 8 7.70 2.30 16 1/2 7.90 0.38 2.68 20.63 301,700 179 402,200 SJX-450-.../W 4-1/2 4 6 8 8.20 3.10 14 9/16 7.40 0.38 3.48 34.00 787,200 281 1,047,000
SJ-500-.../W 5 4 6 8 7.95 2.30 16 1/2 7.90 0.38 2.68 21.19 301,700 179 402,200 SJX-475-.../W 4-3/4 4 6 8 8.45 3.25 16 9/16 7.90 0.38 3.63 37.00 904,500 282 1,203,000
SJ-525-.../W 5-1/4 4 6 8 8.70 2.40 16 9/16 8.40 0.50 2.90 28.11 396,700 269 529,000 SJX-500-.../W 5 4 6 8 8.45 3.55 16 9/16 7.90 0.38 3.93 39.00 904,500 282 1,203,000
SJ-550-.../W 5-1/2 4 6 8 8.95 2.40 16 9/16 8.40 0.50 2.90 28.75 396,700 269 529,000 SJX-525-.../W 5-1/4 4 6 8 8.70 3.60 16 9/16 8.40 0.50 4.10 41.00 904,500 282 1,203,000
SJ-575-.../W 5-3/4 4 6 8 9.20 2.40 16 9/16 9.40 0.50 2.90 31.41 396,700 269 529,000 SJX-550-.../W 5-1/2 4 6 8 8.95 3.70 18 9/16 8.40 0.50 4.20 43.00 996,200 276 1,325,000
SJ-600-.../W 6 4 6 8 9.45 2.40 16 9/16 9.40 0.50 2.90 31.38 396,700 269 529,000 SJX-575-.../W 5-3/4 4 6 8 9.45 3.75 18 9/16 9.40 0.50 4.25 48.00 1,010,600 280 1,344,000
SJX-600-.../W 6 4 6 8 9.45 3.75 18 9/16 9.40 0.50 4.25 47.00 1,010,600 280 1,344,000
* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application. * All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
- Other sizes, thread pitches or thread per inch (TPI) may be available. Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Dimensions listed are representative. - Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.
42 43
 n 1 3 2 SW
LK SW L

NM
b SW

SSJX
n 1 3 2

Bolt-style tensioner Bearing locknut

DxP
D1

DS
DxP
(Metric)

D1

DS
COMPACT/LOW PROFILE

COMPACT/LOW PROFILE
Low profile Components:
1 Bolt body Superbolt bearing locknuts are directly interchangeable with many standard locknuts.
SSJX bolt-style tensioners offer multi-jackbolt features that match the countersink 2 Jackbolts
H S L They’re ideal for positioning bearings, and clamping entire shaft assemblies. NM/NI bearing
dimensions of standard socket-head cap screws. Moly-lubricated set screws are included. 3 Hardened washer H S
L
locknuts are designed to match correspondingly sized bearing loads.

Preload
Metric Size Bolt body Jackbolt Hardened washer Height Preload* Torque*
capacity*
Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
Thread Available Pitch 1 2 3 tot nom nom max
Thread Pitch 1 2 3 tot max max
Part number D P1 P2 P3 D1 H n SW DS S LK F M
Part number D P1 D1 H n SW SWL DS S L est F M
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kN] [Nm] [kN]
SSJX-M20x...x…/W M20 2.5 1.5 1 32 17 8 3 32 4 21 94 4.5 125 [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm]

SSJX-M22x...x…/W M22 3 2 1.5 35 17 10 3 35 4 21 115 4.5 155 NM-06/W M30 1.5 50 10 6 3 3 50 3 13 0.14 55 3.5
SSJX-M24x...x…/W M24 3 2 1.5 38 19 12 3 38 4 23 140 4.5 185 NM-07/W M35 1.5 55 10 6 3 3 55 3 13 0.18 55 3.5
SSJX-M27x...x…/W M27 3.5 2 1.5 41 19 12 3 41 5 24 140 4.5 185 NM-08/W M40 1.5 71 12 6 4 4 71 4 16 0.36 94 8
SSJX-M30x...x…/W M30 3.5 2 1.5 45 23 10 4 45 5 28 215 11 290 NM-09/W M45 1.5 75 12 6 4 4 75 4 16 0.41 94 8
SSJX-M33x...x…/W M33 4 3 1.5 50 23 12 4 50 5 28 255 11 350 NM-10/W M50 1.5 78 12 6 4 4 78 4 16 0.41 94 8
SSJX-M36x...x…/W M36 4 3 1.5 55.5 27 10 5 55 6 33 315 20 425 NM-11/W M55 2 84 12 6 4 4 84 4 16 0.41 94 8
SSJX-M39x...x…/W M39 4.5 3 1.5 59 27 12 5 59 6 33 380 20 510 NM-12/W M60 2 90 12 6 4 4 90 4 16 0.50 94 8
SSJX-M42x...x…/W M42 4.5 3 1.5 63 27 12 5 63 6 33 380 20 510 NM-13/W M65 2 94 12 6 4 4 94 4 16 0.50 94 8
SSJX-M45x...x…/W M45 5 3 1.5 69 38 12 6 69 6 44 530 33 710 NM-14/W M70 2 100 12 6 4 4 100 4 16 0.54 94 8
SSJX-M48x...x…/W M48 5 3 2 72 38 12 6 72 6 44 600 37 790 NM-15/W M75 2 104 12 6 4 4 104 4 16 0.82 94 8
SSJX-M52x...x…/W M52 5.5 4 2 76 38 12 6 76 6 44 630 39 840 NM-16/W M80 2 109 18 6 5 4 109 5 23 0.82 120 13
SSJX-M56x...x…/W M56 5.5 4 2 84 38 12 6 84 6 44 630 39 840 NM-17/W M85 2 114 18 6 5 4 114 5 23 0.82 120 13
SSJX-M60x...x…/W M60 6 4 2 88 38 14 6 88 6 44 740 39 980 NM-18/W M90 2 119 18 6 5 4 119 5 23 0.91 120 13
SSJX-M64x...x…/W M64 6 4 2 97 51 12 8 97 8 59 930 75 1230 NM-19/W M95 2 126 19 8 5 4 126 5 24 1.01 160 13
SSJX-M68x...x…/W M68 6 4 2 104 51 12 8 104 8 59 1060 86 1420 NM-20/W M100 2 131 19 8 5 4 131 5 24 1.09 160 13
SSJX-M72x...x…/W M72 6 4 2 108 51 14 8 108 8 59 1200 83 1580 NM-21/W M105 2 138 19 8 5 4 138 5 24 1.36 200 16
SSJX-M76x...x…/W M76 6 4 2 114 51 14 8 114 8 59 1360 94 1800 NM-22/W M110 2 150 22 8 6 5 150 6 28 1.81 270 25
SSJX-M80x...x…/W M80 6 4 2 117 51 16 8 117 8 59 1490 90 1970 NM-24/W M120 2 159 23 8 6 5 159 6 29 1.95 270 25
SSJX-M90x...x…/W M90 6 4 2 131 76 14 10 131 10 86 1970 165 2630 NM-26/W M130 2 171 24 12 6 5 171 6 30 2.36 340 21
SSJX-M100x...x…/W M100 6 4 2 144 76 14 10 144 10 86 2210 185 2920 NM-28/W M140 2 182 24 12 6 5 182 6 30 2.48 340 21
NM-30/W M150 2 190 25 12 6 5 190 6 31 2.68 340 21
NM-32/W M160 3 213 27 8 8 6 213 8 35 4.29 425 52

NI
Hardened Preload
Imperial Size Bolt body Jackbolt Height Preload* Torque*
washer capacity*
Thread Available TPI 1 2 3 tot
Part number D P1 P2 P3 D1 H n SW Ds S LK F M max Bearing locknut
(Imperial)
[in] [in] [in] [in] [in] [in] [in] [LBf] [Lbft] [LBf]
SSJX-075-...x.../W 3/4 10 16 - 1.17 0.65 8 1/8 1.17 0.13 0.78 22,400 5 26,900
SSJX-087-...x.../W 7/8 9 14 - 1.35 0.65 10 1/8 1.35 0.13 0.78 31,400 5 37,700
SSJX-100-...x.../W 1 8 12 14 1.49 0.65 12 1/8 1.49 0.13 0.78 39,800 5 47,800 Imperial Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
SSJX-112-....x.../W 1-1/8 7 8 12 1.70 0.90 10 5/32 1.70 0.16 1.06 52,700 9 63,200 Thread TPI 1 2 3 tot max max
SSJX-125-...x.../W 1-1/4 7 8 12 1.85 0.90 12 5/32 1.85 0.16 1.06 63,200 9 75,900
Part number D P1 D1 H n SW SWL DS S L est F M
SSJX-137-...x.../W 1-3/8 6 8 12 2.10 1.05 10 3/16 2.10 0.19 1.24 80,000 16 96,000
[in] [in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft]
SSJX-150-...x.../W 1-1/2 6 8 12 2.22 1.05 12 3/16 2.22 0.19 1.24 95,900 16 115,100
NI-06/W 1.173 18 1.95 0.39 6 1/8 1/8 1.95 0.19 0.58 0.30 12,750 3
SSJX-162-...x.../W 1-5/8 6 8 12 2.43 1.05 12 3/16 2.43 0.19 1.24 95,900 16 115,100
NI-07/W 1.376 18 2.15 0.39 6 1/8 1/8 2.15 0.19 0.58 0.40 12,750 3
SSJX-175-...x.../W 1-3/4 5 8 12 2.60 1.05 14 3/16 2.60 0.19 1.24 111,900 16 134,300
NI-08/W 1.563 18 2.80 0.47 6 5/32 5/32 2.80 0.19 0.66 0.80 20,800 6
SSJX-187-...x.../W 1-7/8 6 8 12 2.80 1.55 10 5/16 2.80 0.22 1.77 142,400 37 170,900
NI-09/W 1.767 18 2.97 0.47 6 5/32 5/32 2.97 0.19 0.66 0.90 20,800 6
SSJX-200-...x.../W 2 4.5 8 12 2.98 1.55 12 5/16 2.98 0.22 1.77 170,800 37 205,000
NI-10/W 1.967 18 3.09 0.47 6 5/32 5/32 3.09 0.19 0.66 0.90 20,800 6
SSJX-225-...x.../W 2-1/4 4.5 8 12 3.40 1.55 14 5/16 3.40 0.22 1.77 199,300 37 239,200
NI-11/W 2.157 18 3.30 0.47 6 5/32 5/32 3.30 0.19 0.66 0.90 20,800 6
SSJX-250-...x.../W 2-1/2 4 8 12 3.80 2.00 12 5/16 3.80 0.28 2.28 243,400 74 292,100
NI-12/W 2.360 18 3.55 0.47 6 5/32 5/32 3.55 0.19 0.66 1.10 20,800 6
SSJX-275-...x.../W 2-3/4 4 8 12 4.15 2.00 14 3/8 4.15 0.28 2.28 283,900 74 340,700
SSJX-300-...x.../W 3 4 6 8 4.45 2.00 14 3/8 4.45 0.28 2.28 283,900 74 360,700 NI-13/W 2.548 18 3.70 0.47 6 5/32 5/32 3.70 0.19 0.66 1.10 20,800 6
SSJX-325-...x.../W 3-1/4 4 6 8 4.90 2.50 12 3/8 4.90 0.28 2.78 353,300 123 424,000 NI-14/W 2.751 18 3.95 0.47 6 5/32 5/32 3.95 0.19 0.66 1.20 20,800 6
SSJX-350-...x.../W 3-1/2 4 6 8 5.15 2.50 14 3/8 5.15 0.28 2.78 412,200 123 494,600 NI-15/W 2.933 12 4.09 0.47 6 5/32 5/32 4.09 0.19 0.66 1.80 20,800 6
SSJX-375-...x.../W 3-3/4 4 6 8 5.68 3.00 12 1/2 5.65 0.38 3.38 490,200 187 588,200 NI-16/W 3.137 12 4.30 0.70 6 3/16 5/32 4.30 0.19 0.89 1.80 36,200 12
SSJX-400-...x.../W 4 4 6 8 5.97 3.00 14 1/2 5.97 0.38 3.38 571,900 187 686,300 NI-17/W 3.340 12 4.50 0.70 6 3/16 5/32 4.50 0.19 0.89 1.80 36,200 12
NI-18/W 3.527 12 4.70 0.70 6 3/16 5/32 4.70 0.19 0.89 2.00 36,200 12
* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity. NI-19/W 3.730 12 4.95 0.74 8 3/16 5/32 4.95 0.19 0.93 2.20 48,250 12
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application. NI-20/W 3.918 12 5.15 0.74 8 3/16 5/32 5.15 0.19 0.93 2.40 48,250 12
- Other sizes, thread pitches or thread per inch (TPI) may be available.
NI-21/W 4.122 12 5.45 0.77 8 3/16 5/32 5.45 0.25 1.02 3.00 48,250 12
- Dimensions listed are representative.
NI-22/W 4.325 12 5.90 0.85 8 1/4 3/16 5.90 0.25 1.10 4.00 68,000 22
NI-24/W 4.716 12 6.22 0.89 8 1/4 3/16 6.22 0.25 1.14 4.30 68,000 22
NI-26/W 5.106 12 6.72 0.95 12 1/4 3/16 6.72 0.25 1.20 5.20 92,600 20
NI-28/W 5.497 12 7.15 0.95 12 1/4 3/16 7.15 0.25 1.20 5.40 92,600 20
NI-30/W 5.888 12 7.47 0.97 12 1/4 3/16 7.47 0.25 1.22 5.90 92,600 20
NI-32/W 6.284 8 8.35 1.05 8 5/16 1/4 8.35 0.31 1.36 9.40 100,700 44

* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.

44 45
 n 1 3 2 SW

SMX
Mill motor nut

DxP

DS
D1
COMPACT/LOW PROFILE

These tensioners replace the standard mill motor armature nuts supplied by motor OEMs. SMX tensioners are
available for most standard motor frame sizes. Their preloads match the hub stress capacities of brake wheels
and pulleys. For sizes not listed, including 400-series frames, contact your local Nord-Lock Group office.
H S
L

Metric Size Pitch Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
Thread 1 2 3 tot max max
Part number D P1 D1 H n SW Ds S L est F M
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm]
SMX-45/W M30 2 70 20 6 5 70 5 25 0.61 125 13
SMX-50/W M36 3 75 20 8 5 69 5 25 0.64 150 12
SMX-55/W M36 3 80 20 8 5 76 5 25 0.76 175 14
SMX-60/W M42 3 90 26 8 6 81 6 32 1.18 220 20
SMX-65/W M42 3 95 26 8 6 95 6 32 1.41 255 24
SMX-70/W M48 3 100 26 10 6 94 6 32 1.45 300 22

DISCOVER THE SUPERBOLT

SMX-75/W M48 3 105 26 10 6 105 6 32 1.67 340 25
SMX-80/W M56 4 108 27 12 6 106 6 33 1.71 380 24
SMX-85/W M56 4 113 27 14 6 106 6 33 1.86 440 23

SOLUTION DESIGNED FOR YOUR

SMX-90/W M64 4 133 27 8 8 123 8 35 2.74 485 59
SMX-95/W M64 4 140 27 10 8 134 8 35 3.15 535 52
SMX-100/W M72 4 147 27 10 8 138 8 35 3.35 610 59
SMX-110/W
SMX-120/W
M80
M90
4
4
154
184
31
31
12
10
8
10
145
160
8
10
39
41
3.89
5.88
735
855
59
100 BOLTING CHALLENGES

STANDARD RANGE
SMX-130/W M100 4 194 34 12 10 172 10 44 6.88 1030 100
SMX-140/W M100 4 214 34 12 10 172 10 44 8.45 1190 115
SMX-150/W M110 4 224 36 14 10 224 10 46 10.33 1330 111
SMX-160/W M125 4 224 42 16 10 202 10 52 10.33 1530 111
SMX-170/W M125 4 233 44 18 10 202 10 54 11.62 1720 111

PRE-ENGINEERED RANGE
SMX-180/W M140 6 250 44 20 10 215 10 54 13.19 1960 115
SMX-190/W M140 6 250 55 16 12 240 12 67 17.21 2200 193
SMX-200/W M160 6 265 55 18 12 240 12 67 17.31 2400 187
SMX-220/W M160 6 304 55 20 12 290 12 67 26.49 2900 204

Imperial

Part number
Size
Thread
D
TPI

P1
Nut body

D1
1
H
Jackbolt

n
2
SW
Hardened washer

Ds
3
S
Height
tot
L
Weight

est
Preload*
max
F
Torque*
max
M
CUSTOMIZED SOLUTIONS
[in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft]
SMX-802/W 1 8 2.34 0.75 4 3/16 2.34 0.19 0.94 1.00 22,000 12
SMX-803/W 1-1/4 8 2.72 0.75 6 3/16 2.72 0.19 0.94 1.00 33,000 12
SMX-804/W 1-1/4 8 2.72 0.75 6 3/16 2.72 0.19 0.94 1.00 33,000 12
SMX-806/W 1-1/2 8 3.59 1.00 4 1/4 3.59 0.25 1.25 3.00 37,000 26
SMX-808/W 2 8 3.72 1.00 6 1/4 3.72 0.25 1.25 3.00 56,000 26
SMX-810/W 2-1/4 8 4.47 1.13 4 1/4 4.47 0.25 1.38 5.00 66,000 58
SMX-812/W 2-1/2 8 4.72 1.13 6 5/16 4.72 0.25 1.38 6.00 99,000 58
SMX-814/W 3 8 5.47 1.25 8 5/16 5.47 0.25 1.50 9.00 132,000 58
SMX-816/W 3-1/4 8 5.97 1.25 8 5/16 5.97 0.25 1.50 10.00 132,000 58
SMX-818/W 3-1/2 8 6.47 1.25 8 5/16 6.47 0.25 1.50 12.00 132,000 58
SMX-820/W 4 8 7.22 1.50 12 5/16 7.22 0.25 1.75 18.00 198,000 58
SMX-824/W 4 8 7.72 1.50 12 5/16 7.72 0.25 1.75 20.00 198,000 58

* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.

IF YOU’RE NOT
USING SUPERBOLT
TENSIONERS,
YOU’RE WORKING
TOO HARD.

46 47
 COMMON APPLICATIONS
Compressor crossheads
Piston-end nuts

DYNAMIC APPLICATIONS
Rotating equipment
Mining
Crushers
Gearboxes
Presses
Bearing caps
Coupling nuts
Engines

DYNAMIC
APPLICATIONS
Generating correct preload forces for compressors
and rotating equipment can be especially
demanding. Superbolt tensioners for dynamic
applications incorporate an added safety design
feature – captive machinery-style jackbolts.
Gain a competitive advantage with cross-
head jamnuts (CN Series) for reciprocating
compressor crossheads. Simple hand tools
and an easy-to-follow specific installation
procedure make CN a preferred solution.
Piston-end nuts (SP Series) are specially
designed to match the custom counterbore
necessary dimensions of the nuts they replace.
MR Series with captive tensioners replace the
traditional MT Series for rotating equipment.
Custom-designed products The MRA Series – an armored-style tensioner
When off-the-shelf parts just won’t do the job, you can rely on the Superbolt with countersunk, captive jackbolts – is the
Technical Center to design and manufacture exactly what you need. We respond solution for couplings and harsh environments.
fast to keep your downtime to a minimum and get your equipment back up
and running safely, efficiently, and cost-effectively.

48 49
 ___
BOLT-INTENSIVE COMPRESSORS:
DYNAMIC APPLICATIONS

DYNAMIC APPLICATIONS
CN Compressor SP Compressor

THIS IS A JOB___
Crosshead Jamnut Piston End Nut
FOR SUPERBOLT. CN compressor crosshead jamnuts are safe and These custom-designed, nut-style tensioners
easy to install or remove. Designed in collaboration are ideal for attaching compressor pistons to
with a major compressor manufacturer, they piston rods. There’s no need to clamp the rod
Reciprocating compressors incorporate a tremendous range of complex bolted connections. incorporate Superbolt captive jackbolts as an when installing or removing Superbolt piston-
Superbolt can help you solve just about any challenge on your compressor. added safety feature. An extra-wide bolt circle end nuts, which incorporate captive jackbolts
positions jackbolts away from the piston rod for as an added safety feature.
Superbolt CN and SP custom tensioners are designed specifically for challenging better wrench clearance.
reciprocating compressor applications. MR and MRA also feature captive jackbolts For sizes and availability of CN and SP tensioners,
please contact your local Nord-Lock Group office.
and are useful on many compressor applications, engines and couplings.

Foundation Bolts Connecting Rods Main Bearing Crosshead Housing CN Tensioner on Crosshead Distance Piece SP Tensioner on Piston MT Tensioner on Cylinder Heads

50 51
 L
L
n 1 3 2 SW 3
n 1 2 SW

MR MRA
Captive jackbolt tensioner Armored nut-style tensioner

DxP
DYNAMIC APPLICATIONS

DYNAMIC APPLICATIONS
DxP
DS
D1

DS
D1
MR Series tensioners meet the special requirements of high-speed rotating machinery. Captively mounted Our MRA series adds mechanical protection to the special requirements of high-speed rotating machinery
within the tensioner body, these jackbolts can’t work free and cause damage when installed. such as shaft couplings. Jackbolts recessed into the nut body are safe from damage in harsh or abrasive
environments. Captively mounted within the tensioner body, these
jackbolts can’t work free and cause damage when installed.
H S H S

Preload Preload
Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque* Metric Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
capacity* capacity*
Thread Available pitch 1 2 3 tot nom nom max Thread Available pitch 1 2 3 tot nom nom max
Part number D P1 P2 P3 D1 H n SW DS S L est F M Part number D P1 P2 P3 D1 H n SW DS S L est F M
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kN] [Nm] [kN]
MR-M16x.../W M16 2 1.5 1 34 16 4 4 32 3 27 0.10 59 11 75 MRA-M20x.../W M20 2.5 1.5 1 40 20 8 4 39 5 25 0.17 105 10 135
MR-M20x.../W M20 2.5 1.5 1 38 16 6 4 38 4 28 0.15 89 11 110 MRA-M22x.../W M22 2.5 1.5 1 44 20 8 4 44 5 25 0.21 105 10 135
MR-M22x.../W M22 2.5 1.5 1 41 16 6 4 41 4 28 0.15 89 11 110 MRA-M24x.../W M24 3 2 1.5 48 24 10 4 48 5 29 0.29 135 10 175
MR-M24x.../W M24 3 2 1.5 44 16 8 4 43 4 28 0.20 120 11 150 MRA-M27x.../W M27 3 2 1.5 54 27 8 6 53 6 33 0.39 210 26 275
MR-M27x.../W M27 3 2 1.5 50 24 6 6 50 5 42 0.35 155 26 205 MRA-M30x.../W M30 3.5 2 1.5 60 27 8 6 60 6 33 0.50 210 26 275
MR-M30x.../W M30 3.5 2 1.5 53 24 6 6 53 5 42 0.35 155 26 205 MRA-M33x.../W M33 3.5 2 1.5 66 33 10 6 63 6 39 0.71 260 26 340
MR-M33x.../W M33 3.5 2 1.5 59 24 8 6 59 5 42 0.45 210 26 270 MRA-M36x.../W M36 4 3 1.5 72 38 8 7 70 8 46 1.04 300 46 400
MR-M36x.../W M36 4 3 1.5 66 32 6 7 66 5 56 0.75 225 46 295 MRA-M39x.../W M39 4 3 1.5 78 38 10 7 76 8 46 1.20 375 46 495
MR-M39x.../W M39 4 3 1.5 70 32 8 7 70 5 56 0.85 300 46 395 MRA-M42x.../W M42 4.5 3 1.5 84 42 12 7 82 8 50 1.53 450 46 595
MR-M42x.../W M42 4.5 3 1.5 75 32 8 7 73 5 56 0.95 300 46 395 MRA-M45x.../W M45 4.5 3 1.5 90 45 8 9 90 10 55 1.90 510 95 670
MR-M45x.../W M45 4.5 3 1.5 83 38 8 9 81 6 64 1.45 510 94 675 MRA-M48x.../W M48 5 3 1.5 96 48 10 9 95 10 58 2.29 640 95 840
MR-M48x.../W M48 5 3 1.5 85 38 8 9 85 6 64 1.45 510 94 675 MRA-M52x.../W M52 5 3 2 104 48 12 9 104 10 58 2.69 810 100 1095
MR-M52x.../W M52 5 3 2 94 38 8 9 89 6 64 1.75 510 94 675 MRA-M56x.../W M56 5.5 4 2 112 58 12 9 112 10 68 3.75 810 100 1095
MR-M56x.../W M56 5.5 4 2 100 38 8 9 95 6 64 2.00 510 94 675 MRA-M60x.../W M60 5.5 4 2 120 64 10 12 120 12 76 4.84 1140 225 1520
MR-M60-.../W M60 5.5 4 2 107 38 10 9 100 6 64 2.25 640 94 845 MRA-M64x.../W M64 6 4 2 128 64 10 12 128 12 76 5.55 1140 225 1520
MR-M64-.../W M64 6 4 2 113 53 8 12 112 8 87 3.50 920 225 1220 MRA-M68x.../W M68 6 4 2 136 70 12 12 136 12 82 6.75 1370 225 1825
MR-M68x.../W M68 6 4 2 117 53 8 12 117 8 87 3.75 920 225 1220 MRA-M72x.../W M72 6 4 2 144 70 12 12 144 12 82 7.62 1370 225 1825
MR-M72x.../W M72 6 4 2 120 56 8 12 120 8 87 4.00 920 225 1220 MRA-M76x.../W M76 6 4 2 152 80 14 12 152 12 92 9.52 1600 225 2135
MR-M76x.../W M76 6 4 2 132 56 12 12 127 8 87 5.00 1370 225 1830 MRA-M80x.../W M80 6 4 2 160 80 14 12 160 12 92 10.59 1600 225 2135
MR-M80x.../W M80 6 4 2 132 56 12 12 127 8 87 4.70 1370 225 1830 MRA-M90x.../W M90 6 4 2 170 86 16 12 170 12 98 12.26 1830 225 2440
MR-M85x.../W M85 6 4 2 137 56 12 12 137 8 87 5.00 1370 225 1830 MRA-M100x.../W M100 6 4 2 190 102 12 16 190 16 118 17.86 2310 470 3070
MR-M90x.../W M90 6 4 2 145 59 16 12 137 8 94 5.85 1830 225 2440 MRA-M110x.../W M110 6 4 2 209 102 14 16 209 16 118 21.62 2690 470 3575
MR-M100x.../W M100 6 4 2 164 61 16 12 152 8 94 7.60 1830 225 2440 MRA-M120x.../W M120 6 4 2 228 102 14 16 228 16 118 26.01 2690 470 3575
MR-M110x.../W M110 6 4 2 177 79 12 16 172 10 112 11.10 2290 465 3040 MRA-M125x.../W M125 6 4 2 238 102 16 16 238 16 118 28.37 3070 470 4080
MR-M120x.../W M120 6 4 2 189 81 16 16 179 10 112 12.75 3050 465 4060
MR-M125x.../W M125 6 4 2 194 81 16 16 190 10 112 13.00 3050 465 4060

Imperial Size Nut body Jackbolts Hardened washer Height Weight Preload* Torque* Preload
capacity* Preload
Imperial Size Nut body Jackbolt Hardened washer Height Weight Preload* Torque*
capacity*
Thread Available TPI 1 2 3 tot nom nom max
Thread Available TPI 1 2 3 tot nom nom max
Part number D P1 P2 P3 D1 H n SW DS S L est F M
Part number D P1 P2 P3 D1 H n SW DS S L est F M
[in] [in] [in] [in] [in] [in] [in] [Lb] [LBf] [Lbft] [LBf]
[in] [in] [in] [mm] [in] [in] [in] [Lb] [LBf] [Lbft] [LBf]
MR-075-.../W 3/4 10 16 - 1.47 0.70 4 3/16 1.50 0.13 1.37 0.31 16,300 11 20,400
MRA-075-…/W 3/4 10 16 - 1.57 0.79 8 4 1.54 0.20 0.98 0.37 23,600 7 30,400
MR-087-.../W 7/8 9 14 - 1.60 0.70 6 3/16 1.63 0.13 1.37 0.34 24,500 11 30,600
MRA-087-…/W 7/8 9 14 - 1.73 0.79 8 4 1.73 0.20 0.98 0.46 23,600 7 30,400
MR-100-.../W 1 8 12 14 1.90 0.93 6 7/32 2.00 0.19 1.69 0.68 38,900 22 48,600
MRA-100-…/W 1 8 12 14 1.89 0.94 10 4 1.89 0.20 1.14 0.64 30,400 7 39,300
MR-112-.../W 1-1/8 7 8 12 2.08 0.93 6 7/32 2.13 0.19 1.69 0.79 38,900 22 48,600
MRA-112-…/W 1-1/8 7 8 12 2.36 1.06 8 6 2.36 0.24 1.30 1.10 47,200 19 61,800
MR-125-.../W 1-1/4 7 8 12 2.25 0.94 8 7/32 2.38 0.19 1.69 0.92 51,900 22 64,800
MRA-125-…/W 1-1/4 7 8 12 2.60 1.30 10 6 2.48 0.24 1.54 1.57 58,500 19 76,400
MR-137-.../W 1-3/8 6 8 12 2.46 1.20 6 9/32 2.50 0.19 2.09 1.40 59,000 39 73,800
MRA-137-…/W 1-3/8 6 8 12 2.67 1.30 10 6 2.56 0.24 1.54 1.60 58,500 19 76,400
MR-150-.../W 1-1/2 6 8 12 2.70 1.20 8 9/32 2.75 0.19 2.09 1.70 78,800 39 98,400
MRA-150-…/W 1-1/2 6 8 12 3.07 1.50 10 7 2.99 0.31 1.81 2.65 84,300 34 111,300
MR-162-.../W 1-5/8 6 8 12 2.96 1.20 8 9/32 2.88 0.19 2.09 2.01 78,800 39 98,400
MRA-162-…/W 1-5/8 6 8 12 3.31 1.65 12 7 3.23 0.31 1.97 3.37 101,200 34 133,800
MR-175-.../W 1-3/4 5 8 12 3.08 1.42 8 11/32 3.13 0.25 2.49 2.53 103,700 60 129,600
MRA-175-…/W 1-3/4 5 8 12 3.54 1.77 8 9 3.54 0.39 2.17 4.19 114,700 70 150,700
MR-187-.../W 1-7/8 6 8 12 3.59 1.60 8 3/8 3.50 0.25 2.81 4.07 140,200 91 175,200
MRA-187-…/W 1-7/8 6 8 12 3.78 1.89 10 9 3.74 0.39 2.28 5.05 143,900 70 188,800
MR-200-.../W 2 4.5 8 12 3.59 1.60 8 3/8 3.50 0.25 2.81 3.87 140,200 91 175,200
MRA-200-…/W 2 4.5 8 12 4.09 1.89 12 9 4.09 0.39 2.28 5.93 182,100 74 246,200
MR-225-.../W 2-1/4 4.5 8 12 3.95 1.60 8 3/8 3.75 0.25 2.81 4.51 140,200 91 175,200 MRA-225-…/W 2-1/4 4.5 8 12 4.41 2.28 12 9 4.41 0.39 2.68 8.27 182,100 74 246,200
MR-250-.../W 2-1/2 4 8 12 4.45 2.10 8 1/2 4.50 0.31 3.51 7.82 228,500 186 285,600 MRA-250-…/W 2-1/2 4 8 12 5.04 2.52 10 12 5.04 0.47 2.99 12.24 256,300 166 341,700
MR-275-.../W 2-3/4 4 8 12 4.70 2.10 8 1/2 4.75 0.31 3.51 8.36 228,500 186 285,600 MRA-275-…/W 2-3/4 4 8 12 5.67 2.76 12 12 5.67 0.47 3.23 16.80 308,000 166 410,300
MR-300-.../W 3 4 6 8 5.20 2.10 12 1/2 5.00 0.31 3.51 10.30 342,700 186 428,400 MRA-300-…/W 3 4 6 8 5.98 3.15 14 12 5.98 0.47 3.62 20.99 359,700 166 480,000
MR-325-.../W 3-1/4 4 6 8 5.45 2.20 12 1/2 5.00 0.31 3.51 11.04 342,700 186 428,400 MRA-325-…/W 3-1/4 4 6 8 6.40 3.15 14 12 6.40 0.47 3.62 23.79 359,700 166 480,000
MR-350-.../W 3-1/2 4 6 8 5.70 2.30 16 1/2 5.50 0.31 3.87 12.62 457,000 186 571,200 MRA-350-…/W 3-1/2 4 6 8 6.69 3.39 16 12 6.69 0.47 3.86 27.03 411,400 166 548,600
MR-375-.../W 3-3/4 4 6 8 6.20 2.40 16 1/2 5.50 0.31 3.87 15.08 457,000 186 571,200 MRA-375-…/W 3-3/4 4 6 8 6.89 3.39 16 12 6.89 0.47 3.86 27.82 411,400 166 548,600
MR-400-.../W 4 4 6 8 6.45 2.60 18 1/2 6.00 0.31 4.04 17.31 514,100 186 642,600 MRA-400-…/W 4 4 6 8 7.48 4.02 12 16 7.48 0.63 4.65 39.37 519,300 347 690,200
MR-425-.../W 4-1/4 4 6 8 6.95 3.00 16 9/16 6.40 0.38 4.76 23.41 645,100 312 806,400 MRA-425-…/W 4-1/4 4 6 8 8.23 4.02 14 16 8.23 0.63 4.65 47.66 604,800 347 803,700
MR-450-.../W 4-1/2 4 6 8 7.20 3.00 16 9/16 6.65 0.38 4.76 24.44 645,100 312 806,400 MRA-450-…/W 4-1/2 4 6 8 8.40 4.02 14 16 8.40 0.63 4.65 48.26 604,800 347 803,700
MR-475-.../W 4-3/4 4 6 8 7.45 3.20 18 9/16 6.90 0.38 4.94 27.13 725,800 312 907,200 MRA-475-…/W 4-3/4 4 6 8 8.98 4.02 14 16 8.98 0.63 4.65 57.34 604,800 347 803,700
MR-500-.../W 5 4 6 8 7.70 3.30 20 9/16 7.15 0.38 4.94 28.83 806,400 312 1,008,000 MRA-500-…/W 5 4 6 8 9.37 4.02 16 16 9.37 0.63 4.65 62.55 690,200 347 917,300
* All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Other sizes, thread pitches or thread per inch (TPI) may be available. * All preload and torque values are provided for general reference. Applied preload plus additional bolt load from service should not exceed the maximum bolt or stud capacity.
- Dimensions listed are representative. Contact your local Nord-Lock sales office for assistance in determining proper preload and torque settings for your application.
- Other sizes, thread pitches or thread per inch (TPI) may be available.
- Dimensions listed are representative.

52 53
 SECTION INCLUDES
Extreme requirements
for any challenge

CUTTING-EDGE SOLUTIONS
Extreme industry
applications
Unique designs for
your requirements

CUTTING-EDGE
SOLUTIONS
Bolted connections are difficult to set up,
maintain, and disassemble under normal
conditions. Add challenges such as heat
and pressure, and your job just got a
whole lot tougher.
As an example, forging presses must handle
extraordinary forces routinely. But when you need
to prestress or disconnect large-diameter columns
and tie rods, you experience first-hand the giant
gap between human-sized effort and the super-
human torque that the job requires. Similarly, when
your installation gets as hot as a reactor’s pressure
vessel, you know ordinary nuts and bolts won’t give
you the long-term security that safety and proper
functioning require. Under extreme conditions,
experienced plant engineers turn to Superbolt
Real-life testing and validation at your site for high-preload, large-size, or heat-resistant
Our skilled engineers can perform a thorough investigation of your bolted tensioners that translate mechanical advantage
connections, including real-life tests or validation, at your site. into maintenance reductions, cost savings, and
faster, safer operations.

54 55
 ___
EXTREME
CUTTING-EDGE SOLUTIONS

CUTTING-EDGE SOLUTIONS
REQUIREMENTS
FOR ANY The world’s largest bolt-style Superbolt being

___
CHALLENGE
installed in a two-post hydraulic forging press.

High- & low-

temperature tensioners

Large diameters & high preload

Other bolting methods would be heavily challenged
to solve the many bolting problems found in giant
machines such as forging presses, cranes, or
mining machines. All of these have large diameter
nuts and bolts well over M100 (4 inch) that require
extremely high preloads. Superbolt is right at home
in these applications and still allows you to achieve
the preload, getting the job done without increased
hassle. Thread diameters of 1,5 M (60 inch) and
with clamp ranges up to 90 MN (20 Mlbf) have
been produced.

Assembling an enormous 1016 mm (40 inch) thread tensioner,

used on a 50,000 ton press.

Material Requirements,
Environmental & Corrosion Protection
Extreme temperatures increase the
complexity of bolting. Superbolt products
No matter the environment, Superbolt has plenty of product-enhancing are available in solutions to meet
options to keep things protected. From stainless steels to various coatings, temperature ranges of -270°C (-450°F) to
we can meet your requirements in humid environments, offshore & 600°C (1150°F). Due to the complexities
Superbolt STC salt water splash zones or chemical exposure. In addition to corrosion of low- and high-temperature bolting,
protection, coatings can be beneficial for various purposes, e.g., color- Superbolt offers a variety of solutions
Innovative and easy to use Split-Nut Thrust Collar coding, durability and conductivity enhancement, as well as friction control. based on the temperatures and code
(STC) tensioners are the perfect solution for requirements. Such cases are often
large sized threads and high preload requirement Stainless materials adapted Examples of coatings and found in power or petrochemical plants
applications. A threaded split nut (1) is positioned for the requirements: platings including: where extremely low temperatures (liquid
over a threadless ring (2). When tightened, the • Martensitic • Electroless nickel hydrogen, fusion reactors, etc.) and
jackbolts – which are contained in the ring – push • Austenitic • Xylan extremely high temperatures (combustion
against a hardened washer (3) and cause the ring • Duplex • Zinc chambers, turbines, steel mills, furnace
to thrust against the split nut, thereby preloading • Precipitation hardened • Black oxide equipment) exist.
the joint. The installation is quicker and with less • Inconels & Monels • Zinc flake
heavy turning equipment. • PVC & metal caps

56 57
 IT’S JUST
CUTTING-EDGE SOLUTIONS

CUTTING-EDGE SOLUTIONS
ROCKET
SCIENCE.

Credit © ITER Organization, http://www.iter.org/

___
___
EXTREME INDUSTRY APPLICATIONS Fusion Superbolts are ideal for Tokamak structures where there is a mixture of bolting complexity and
extreme requirements. This means the need for precise material properties, meeting extreme bolt
Power loads, working within limited spaces, and where both extremely high and low temperatures exist is
now possible. Superbolt is ideally suited for applications like ITER.

Space

Superbolt is rocket science! Not

that it is difficult to handle or use,
but we have the bolting know-
how that space environments
require. We are useful on launch
craft equipment, satellites,
International Space Station (ISS),
and many more. Since there are Nuclear Power Particle Defense
no torsion effects and only small Generation Accelerators Land, air or sea
handheld tooling is needed, the
small torques on the jackbolts
make bolting possible in non- Superbolt tensioners are ideal for Superbolt provided over 1,400 Superbolt tensioners are ideally suited
gravity environments. nuclear plant critical and high- nut-and-bolt-style tensioners and for the many “can’t fail” extreme
Additionally, space- radiation applications. Significant pins for securing the assembly of applications required for national
approved lubricants savings in worker exposure 30-foot diameter magnet endcap defense. Superbolt offers Resistant
are utilized. and outage time are realized. disks inside the underground Hull Integrity Stud/Bolt Tensioners
Applications examples: valves, tunnel that holds the collider. Large designed as an alternative to heavy
heaters, manways, pumps, turbines, loads were required and only small hex monel self-locking nuts. They are
shaftline couplings. Manufactured spaces were available. shock-qualified and salt-waterproof,
from approved materials. ideally suited for commercial marine,
navy, and offshore applications.

58 59
 Offshore/Sub-sea
CUTTING-EDGE SOLUTIONS

CUTTING-EDGE SOLUTIONS
Superbolt offers a unique combination of features built
into this specialized multi-jackbolt tensioner for offshore
bolting applications. It incorporates three key features:
1) The washer is captive to the nut body to prevent loss
of the washer,
2) corrosion protection to address the harsh conditions,
and
3) integral flats on the nut for turning assistance on
difficult stud threads.

Tamper-
proof
tensioners

Superbolt offers a tamper-resistant jackbolt design.

The tamper-resistant jackbolts are a product improve-
ment for Superbolt’s multi-jackbolt tensioner (MJT)
bolting system and are intended for use in security-
sensitive applications. Tamper-resistant jackbolts are
designed to protect MJTs from unwanted tightening
and loosening. They utilize an abnormally shaped head
Externally set in a counter-bore hole, which requires a special
Threaded tool attachment to torque or un-torque the jackbolts.

Tensioners (ETT)

An ETT is an externally threaded tensioner that provides

a pushing force for loading or sealing a mating piece
RIGHT PRO
THE
(compression member). Unlike conventional nut-style
D DU
tensioners with an internal threaded portion and machined- N

OPTIM

FI

CT
surface outer diameter, an ETT has its threads machined

LL HELP YOU

FOR
DESIG UM
onto the outer diameter. The ETT can be solid or hollow

YOUR APP
___
(i.e. bored center hole but unthreaded). The ETTs use
multi-jackbolt technology to generate compression loads N!

WE´
for assembly components in machinery. They simply are

LIC
PE

SU
AT
turned into position. A large hex or some other provided RB
ION
O LT . C O M
turning tool is used to facilitate nut turn-down. The jackbolts,

UNIQUE DESIGNS FOR

which are tightened to a prescribed torque with low-energy
handheld tools, push directly against the loading piece.
Strong compression or sealing forces are generated.

___
YOUR REQUIREMENTS Customized studs

We sell a majority of tensioners, but also offer one-source

shopping for your entire joint hardware. We offer customized
Ever since the beginning, we have been proud of our ability to meet any bolting
studs to meet and deliver a complete bolted package.
challenge. From engineering to design to manufacturing to installation, from We have comprehensive threading know-how and an
our standard range, our pre-engineered range or customized solutions, we have extensive inventory of gaging equipment. Why not choose
a Superbolt nut-style tensioner, stud and flexnut kit?
the know-how to provide the right design for your application. The following
Sizes from M16 to over M300 are possible and in a wide
are just a few examples of what we can do. variety of materials. We have rolled thread capability and can
handle many thread configurations and standards (ISO, DIN,
ANSI, Whitworth, Acme, Trapezoidal, and Buttress).

61
 YOUR PARTNER IN BOLTING SOLUTIONS

65+
WORLD-
COMPLETE RANGE OF TENSIONING SOLUTIONS

6 6
COUNTRIES WITH

LEADING
In addition to Superbolt solutions, world-renowned hydraulic bolting provider Boltight is part
REPRESENTATION
of the Nord-Lock Group. Our extensive experience and wide range of solutions allows us to
TECHNOLOGY recommend or design the optimum solution for any bolting challenge.
PRODUCTION CENTERS

25+
PLANTS

EXPERTS
BOLTIGHT HYDRAULIC
OFFICES
WORLDWIDE TENSIONING
Boltight solutions have been at the fore-
front of the hydraulic tensioning business
for many years. The tools feature advanced
technology and are designed for critical
applications within various industries.
By working in partnership with customers,
Joining parts together is one of the most Strong and robust designs ensure durability and long operating life
new ways to deliver cost-effective solutions
critical steps when delivering a product or for numerous industrial bolting applications Lightweight designs ensure that tools are easy to work with
system. The Nord-Lock Group is focused on Precise engineering offers smooth, trouble-free operation
have been developed.
Clever solutions such as spring return tensioners to save time
making the world a safer place by offering Equipment conforms to European Pressure Equipment Directive and is CE marked
secure bolting solutions for any challenge.

OTHER NORD-LOCK GROUP

Innovative technologies
The technologies in our portfolio are developed
in-house and are available in a wide range of
materials and sizes. Our solutions are specified by TECHNOLOGIES
world-leading companies within all major industries.
Nord-Lock Original wedge-locking
Our products hold extensive certifications and are solutions when failure is not an option
known for their reliability and high quality. Nord-Lock wedge-locking solutions are
recognized around the world for their ability
Unmatched expertise to secure bolted joints exposed to severe
Maximizing customer uptime in today’s market vibration and dynamic loads. An ideal solution
means offering competitive solutions over the for bolted joints where failure is not an option.
whole operational life-cycle. The Nord-Lock
Group offers knowledge partnership including
on-site and remote support, combined with
the technical verification carried out from our
in-house laboratories. All this to ensure safe and
efficient bolting. Expander System advanced and
cost-effective solution for lug wear
Global partnership Expander System is a permanent solution
Find out more about Nord-Lock Group We fully control the manufacturing process of our for lug wear, which is a common reason for

www.nord-lock.com technologies and offer global availability. We have

distribution centers in strategic locations and work
equipment breakdowns. The technology
eliminates the need for welding and line
boring while allowing broader tolerances.
with a network of authorized partners all over the
world.

62 63
 ___
WHEN SAFETY___
REALLY MATTERS
Safer, easier to work with, and far more reliable than conventional bolting
methods, Superbolt multi-jackbolt tensioners have proven their superiority
in thousands of successful installations. The key is a patented design that
divides the load among multiple small jackbolts, giving you an overwhelming
mechanical advantage. Connections stay tight indefinitely, yet a single worker

English • Printed in Sweden • 2018-02

can torque or un-torque the most massive assemblies with ordinary hand tools.

The Nord-Lock Group is focused on solving the toughest bolting challenges. We offer
a unique combination of bolting expertise and a wide product range – all designed and
developed in-house.

Superbolt US Superbolt CH Nord-Lock International AB

1000 Gregg St. Rietwiesstrasse 2, CH-8735 S:t Johannesgatan 1D,
Carnegie, PA 15106, USA St. Gallenkappel, Switzerland 211 46 Malmö, Sweden
Phone: +1 (412) 279 1149 Phone: +41 (0)55 284 64 64 Tel: +46 (0) 40 602 46 00
Fax: +1 (412) 279 1185 Fax: +41 (0)55 284 64 69 Email: info@nord-lock.se
Email: bolting@nord-lock.com Email: info@nord-lock.ch
www.nord-lock.com www.nord-lock.ch www.nord-lock.se

©Copyright 2018 Nord-Lock Group. NORD-LOCK, SUPERBOLT, BOLTIGHT and EXPANDER SYSTEM are trademarks owned by different companies within the Nord-Lock Group.
All other logos, trademarks, registered trademarks or service marks used herein are the property of the Nord-Lock Group. All rights reserved.