Hkkjrh; ekud IS 1367 (Part 1) : 2014

ISO 8992 : 2005

Indian Standard

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Technical Supply Conditions for

Threaded Steel Fasteners
Part 1 General Requirements for Bolts, Screws, Studs and Nuts

( Fourth Revision )

ICS 21.060.10; 21.060.20

© BIS 2014

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BUREAU OF INDIAN STANDARDS
ekud Hkou] 9 cgknqj'kkg T+kiQj ekxZ] ubZ fnYyh&110002
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI-110002
www.bis.org.in www.standardsbis.in

May 2014 Price Group 2

 IS 1367 (Part 1) : 2014
ISO 8992 : 2005

Bolts, Nuts and Fasteners Accessories Sectional Committee, PGD 31

NATIONAL FOREWORD

This Indian Standard (Part 1) (Fourth Revision) which is identical with ISO 8992 : 2005 ‘Fasteners —
General requirements for bolts, screws, studs and nuts’ issued by the International Organization for
Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the
Bolts, Nuts and Fasteners Accessories Sectional Committee and approval of the Production and
General Engineering Division Council.

This standard was originally published in 1961 and subsequently revised in 1967, 1980 and 2002. The
third revision of this standard was identical with ISO 8992 : 1986. This revision of the standard has
been taken up to align it with the latest version of ISO 8992 : 2005.

This standard is published in various parts. While specific requirements of fasteners are covered in
the rest of the parts, this part is intended to provide an instruction to different parts of the standard
and cover requirements which are general in nature.

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without
deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention
is particularly drawn to the following:
a) Wherever the words ‘International Standard’ appear referring to this standard, they should be
read as ‘Indian Standard’.
b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice
is to use a point (.) as the decimal marker.

In this adopted standard, reference appears to certain International Standards for which Indian
Standards also exist. The corresponding Indian Standards, which are to be substituted in their
respective places are listed below along with their degree of equivalence for the editions indicated:
International Standard Corresponding Indian Standard Degree of Equivalence
ISO 272 : 1982 Fasteners — IS 9519 : 2005 Fasteners — Identical
Hexagon products — Width across Hexagon products — Width across
flats flats (first revision)
ISO 885 : 2000 General purpose IS 4172 : 2005 General purpose bolts do
bolts and screws — Metric series — and screws — Metric series — Radii
Radii under the head under the head (second revision)
ISO 888 : 19761) Bolts, screws and IS 4206 : 1987 Dimensions for do
studs — Nominal lengths and thread nominal lengths and thread lengths
lengths for general purpose bolts for bolts, screws and studs ( first
revision)
ISO 898-1 : 1999 2) Mechanical IS1367 (Part 3) : 2002 Technical do
properties of fasteners made of supply conditions for threaded steel
carbon steel and alloy steel — fasteners : Part 3 Mechanical
Part 1: Bolts, screws and studs properties of fasteners made of
carbon steel and alloy steel — Bolts,
screws and studs (fourth revision)
ISO 898-2 : 1992 1) Mechanical IS 1367 (Part 6) : 1994 Technical do
properties of fasteners — Part 2: Nuts supply conditions for threaded steel
with specified proof load values — fasteners : Part 6 Mechanical
Coarse thread properties and test methods for nuts
with specified proof loads ( third
revision)
1)
Since revised in 2012.
2)
Since revised in 2013.
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IS 1367 (Part 1) : 2014
ISO 8992 : 2005

International Standard Corresponding Indian Standard Degree of Equivalence

ISO 898-5 : 1998 1) Mechanical IS 1367 (Part 5) : 2002 Technical Identical
properties of fasteners made of supply conditions for threaded steel
carbon steel and alloy steel — fasteners : Part 5 Mechanical
Part 5: Set screws and similar properties of fasteners made of
threaded fasteners not under tensile carbon steel and alloy steel — Set
stresses screws and similar threaded
fasteners not under tensile stresses
(third revision)
ISO 898-6 : 1994 Mechanical IS 13096 : 2000 Fasteners — do
properties of fasteners — Part 6: Nuts Hexagon nuts with specified proof
with specified proof load values — load values — Fine pitch thread —
Fine pitch thread Mechanical properties (first revision)
ISO 898-7 : 1992 Mechanical IS 1367 (Part 20) : 1996 Industrial do
properties of fasteners — Part 7: fasteners — Threaded steel
Torsional test and minimum torques fasteners — Technical supply
for bolts and screws with nominal conditions — Mechanical properties :
diameters 1 mm to 10 mm Part 20 Torsional test and minimum
torques for bolts and screws with
nominal diameters 1 mm to 10 mm
ISO 965-1 : 1998 2) ISO general IS 14962 (Part 1) : 2001 ISO general do
purpose metric screw threads — purpose metric screw threads —
Tolerances — Part 1: Principles and Tolerances : Part 1 Principles and
basic data basic data
ISO 965-2 :1998 ISO general IS 14962 (Part 2) : 2001 ISO general do
purpose metric screw threads — purpose metric screw threads —
Tolerances — Part 2: Limits of sizes Tolerances : Part 2 Limits of sizes
for general purpose external and for general purpose external and
internal screw threads — Medium internal screw threads — Medium
quality quality
ISO 965-3 : 1998 ISO general IS 14962 (Part 3) : 2001 ISO general do
purpose metric screw threads — purpose metric screw threads —
Tolerances — Part 3: Deviations for Tolerances : Part 3 Deviations for
constructional screw threads constructional screw threads
ISO 965-4 : 1998 ISO general IS 14962 (Part 4) : 2001 ISO general do
purpose metric screw threads — purpose metric screw threads —
Tolerances — Part 4: Limits of sizes Tolerances : Part 4 Limits of sizes
for hot-dip galvanized external screw for hot-dip galvanized external screw
threads to mate with internal screw threads to mate with internal screw
threads tapped with tolerance threads tapped with tolerance
position H or G after galvanizing position H or G after galvanizing
ISO 965-5 : 1998 ISO general IS 14962 (Part 5) : 2001 ISO general do
purpose metric screw threads — purpose metric screw threads —
Tolerances — Part 5: Limits of sizes Tolerances : Part 5 Limits of sizes
for internal screw threads to mate for internal screw threads to mate
with hot-dip galvanized external with hot-dip galvanized external
screw threads with maximum size screw threads with maximum size of
of tolerance position h before tolerance position h before
galvanizing galvanizing
ISO 2320 : 19973) Prevailing torque IS 1367 (Part 8) : 2002 Technical do
type steel hexagon nuts — supply conditions for threaded steel
Mechanical and performance fasteners : Part 8 Prevailing torque
properties type steel hexagon nuts —
Mechanical and performance
properties (third revision)
1)
Since revised in 2012.
2)
Since revised in 2013.
3)
Since revised in 2008.
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 IS 1367 (Part 1) : 2014
ISO 8992 : 2005

International Standard Corresponding Indian Standard Degree of Equivalence

ISO 3269 : 2000 Fasteners — IS 1367 (Part 17) : 2005 Technical Identical
Acceptance inspection supply conditions for threaded steel
fasteners : Part 17 Inspections,
sampling and acceptance procedure
(fourth revision)
ISO 3506-1 : 1997 1) Mechanical IS 1367 (Part 14/Sec 1) : 2002 do
properties of corrosion-resistant Technical supply conditions for
stainless-steel fasteners — Part 1: threaded steel fasteners : Part 14
Bolt, screws and studs Mechanical properties of corrosion-
resistant stainless-steel fasteners,
Section 1 Bolts, screws and studs
(third revision)
1)
ISO 3506-2 : 1997 Mechanical IS 1367(Par t 14/Sec 2) : 2002 do
properties of corrosion-resistant Technical supply conditions for
stainless-steel fasteners — Part 2: threaded steel fasteners : Part 14
Nuts Mechanical properties of corrosion-
resistant stainless-steel fasteners,
Section 2 Nuts (third revision)
1)
ISO 3506-3 : 1997 Mechanical IS 1367 (Part 14/Sec 3) : 2002 do
properties of corrosion-resistant Technical supply conditions for
stainless-steel fasteners — Part 3: threaded steel fasteners : Part 14
Set screws and similar fasteners not Mechanical properties of corrosion-
under tensile stress resistant stainless-steel fasteners,
Section 3 Set screws and similar
fasteners not under tensile stress
(third revision)
ISO 3508 : 1976 Thread run-outs for IS 1369 (Part 1) : 1993 Fasteners — do
fasteners with thread in accordance Thread run-outs and undercuts :
with ISO 261 and ISO 262 Part 1 Dimensions for screw thread
run-outs for external ISO metric
threads (third revision)
2)
ISO 4753 : 1999 Fasteners — Ends IS 1368 : 2003 Fasteners — Ends of do
of parts with external ISO metric parts with external ISO metric thread
thread (fourth revision)
ISO 4755 : 1983 Fasteners — Thread IS 1369 (Part 2) : 1993 Fasteners — do
undercuts for external metric ISO Thread run-outs and undercuts :
threads Part 2 Dimensions for screw thread
undercuts for external ISO metric
threads (third revision)
ISO 4757 : 1983 Cross recesses for IS 7478 : 2011 Cross recesses for do
screws screws (second revision)
ISO 4759-1 : 2000 Tolerances for IS 1367 (Part 2) : 2002 Technical do
fasteners — Part 1: Bolts, screws, supply conditions for threaded steel
studs and nuts — Product grades A, fasteners : Part 2 Tolerances for
B and C fasteners — Bolts, screws, studs
and nuts — Product grades A, B
and C (third revision)
ISO 6157-1 : 1988 Fasteners — IS 1367 (Par t 9/Sec 1) : 1993 do
Surface discontinuities — Part 1: Technical supply conditions for
Bolts, screws and studs for general threaded steel fasteners : Part 9
requirements Surface discontinuities, Section 1
Bolts, screws and studs for general
applications (third revision)

1)
Since revised in 2009.
2)
Since revised in 2011.

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IS 1367 (Part 1) : 2014
ISO 8992 : 2005

International Standard Corresponding Indian Standard Degree of Equivalence

ISO 6157-2 : 1995 Fasteners — IS 1367(Part 10) : 2002 Technical Identical
Surface discontinuities — Part 2 : supply conditions for threaded steel
Nuts fasteners : Part 10 Surface
discontinuities — Nuts ( third
revision)
ISO 6157-3 : 1988 Fasteners — IS 1367 (Part 9/Sec 2) : 1993 do
Surface discontinuities — Part 3: Technical supply conditions for
Bolts, screws and studs for special threaded steel fasteners : Part 9
requirements Surface discontinuities, Section 2
Bolts, screws and studs for special
applications (third revision)
ISO 7721 : 1983 Countersunk head IS 11362 : 1985 Head configuration do
screws — Head configuration and and gauging of countersunk head
gauging screws

The technical committee has reviewed the provisions of the following International Standards referred
in this adopted standard and has decided that they are acceptable for use in conjunction with this
standard:
International Standard Title
ISO 1478 : 1999 Tapping screws thread
ISO 2702 : 2011 Heat-treated steel tapping screws — Mechanical properties
ISO 3506-4 : 2009 Mechanical properties of corrosion-resistant stainless-steel fasteners —
Part 4: Tapping screws
ISO 4042 : 1999 Fasteners — Electroplated coatings
ISO 7085 : 19991) Mechanical and performance requirements of case hardened and tempered
metric thread rolling screws
ISO 7378 : 1983 Fasteners — Bolts, screws and studs — Split pin holes and wire holes
ISO 8839 : 1986 Mechanical properties of fasteners — Bolts, screws, studs and nuts made
of non-ferrous metals
ISO 10664 : 2005 Hexalobular internal driving feature for bolts and screws
ISO 10666 : 1999 Drilling screws with tapping screw thread — Mechanical and functional
properties
ISO 10683 : 2000 Fasteners — Non-electrolytically applied zinc flake coatings
ISO 10684 : 2004 Fasteners — Hot-dip galvanized coatings
ISO 16048 : 2003 Passivation of corrosion-resistant stainless-steel fasteners
ISO 16426 : 2002 Fasteners — Quality assurance system

For the purpose of deciding whether a particular requirement of this standard is complied with, the
final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in
accordance with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)’. The number of
significant places retained in the rounded off value should be the same as that of the specified value
in this standard.

1)
Since withdrawn.

iv
 IS 1367 (Part 1) : 2014
ISO 8992 : 2005

Indian Standard
TECHNICAL SUPPLY CONDITIONS FOR
THREADED STEEL FASTENERS
PART 1 GENERAL REQUIREMENTS FOR BOLTS, SCREWS, STUDS AND NUTS

( Fourth Revision )
1 Scope
This International Standard specifies the general requirements for standardized bolts, screws, studs and nuts,
but is also recommended for these non-standardized fasteners. It is intended to be used with reference to the
related International Standards on tolerances, mechanical and performance characteristics, geometrical
features, surface discontinuities, surface finishes and quality aspects.

2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

ISO 272, Fasteners — Hexagon products — Widths across flats

ISO 885, General purpose bolts and screws — Metric series — Radii under the head

ISO 888, Bolts, screws and studs — Nominal lengths, and thread lengths for general purpose bolts

ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws
and studs

ISO 898-2, Mechanical properties of fasteners — Part 2: Nuts with specified proof load values — Coarse
thread

ISO 898-5, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 5: Set screws and
similar threaded fasteners not under tensile stresses

ISO 898-6, Mechanical properties of fasteners — Part 6: Nuts with specified proof load values — Fine pitch
thread

ISO 898-7, Mechanical properties of fasteners — Part 7: Torsional test and minimum torques for bolts and
screws with nominal diameters 1 mm to 10 mm

ISO 965-1, ISO general-purpose metric screw threads — Tolerances — Part 1: Principles and basic data

ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general
purpose external and internal screw threads — Medium quality

ISO 965-3, ISO general purpose metric screw threads — Tolerances — Part 3: Deviations for constructional
screw threads

ISO 965-4, ISO general purpose metric screw threads — Tolerances — Part 4: Limits of sizes for hot-dip
galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G
after galvanizing

1
IS 1367 (Part 1) : 2014
ISO 8992 : 2005

ISO 965-5, ISO general purpose metric screw threads — Tolerances — Part 5: Limits of sizes for internal
screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance
position h before galvanizing

ISO 1478, Tapping screws thread

ISO 2320, Prevailing torque type steel hexagon nuts — Mechanical and performance properties

ISO 2702, Heat-treated steel tapping screws — Mechanical properties

ISO 3269, Fasteners — Acceptance inspection

ISO 3506-1, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 1: Bolts, screws and
studs

ISO 3506-2, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 2: Nuts

ISO 3506-3, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 3: Set screws and
similar fasteners not under tensile stress

ISO 3506-4, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 4: Tapping screws

ISO 3508, Thread run-outs for fasteners with thread in accordance with ISO 261 and ISO 262

ISO 4042, Fasteners — Electroplated coatings

ISO 4753, Fasteners — Ends of parts with external ISO metric thread

ISO 4755, Fasteners — Thread undercuts for external metric ISO threads

ISO 4757, Cross recesses for screws

ISO 4759-1, Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C

ISO 6157-1, Fasteners — Surface discontinuities — Part 1: Bolts, screws and studs for general requirements

ISO 6157-2, Fasteners — Surface discontinuities — Part 2: Nuts

ISO 6157-3, Fasteners — Surface discontinuities — Part 3: Bolts, screws and studs for special requirements

ISO 7085, Mechanical and performance requirements of case hardened and tempered metric thread rolling
screws

ISO 7378, Fasteners — Bolts, screws and studs — Split pin holes and wire holes

ISO 7721, Countersunk head screws — Head configuration and gauging

ISO 8839, Mechanical properties of fasteners — Bolts, screws, studs and nuts made of non-ferrous metals

ISO 10664, Hexalobular internal driving feature for bolts and screws

ISO 10666, Drilling screws with tapping screw thread — Mechanical and functional properties

ISO 10683, Fasteners — Non-electrolytically applied zinc flake coatings

ISO 10684, Fasteners — Hot-dip galvanized coatings

ISO 16048, Passivation of corrosion-resistant stainless-steel fasteners

ISO 16426, Fasteners — Quality assurance system

2
 IS 1367 (Part 1) : 2014
ISO 8992 : 2005

3 Specifications and reference standards

See Tables 1 and 2.

Table 1 — Fasteners with ISO metric screw threads

Material Carbon steel Stainless steel Non-ferrous metal

Alloy steel

Tolerances ISO 4759-1

Mechanical and performance ISO 898-1 ISO 3506-1 ISO 8839
characteristics ISO 898-2 ISO 3506-2
ISO 898-5 ISO 3506-3
ISO 898-6
ISO 898-7
ISO 2320
ISO 7085
Geometrical features
 Thread ISO 965-1, ISO 965-2, ISO 965-3, ISO 965-4, ISO 965-5
 Driving features ISO 272, ISO 4757, ISO 10664
 Ends of parts ISO 4753

 Countersunk head ISO 7721

 Others ISO 885, ISO 888, ISO 3508, ISO 4755, ISO 7378

Surface discontinuities ISO 6157-1

ISO 6157-2 — —
ISO 6157-3
Surface finish ISO 4042 ISO 16048 ISO 4042
ISO 10683
ISO 10684
Quality aspects ISO 3269, ISO 16426

Table 2 — Fasteners with tapping screw threads

Material Steel Stainless steel

Tolerances ISO 4759-1
Mechanical and performance ISO 2702 ISO 3506-4
characteristics ISO 10666
Geometrical features
 Thread ISO 1478
 Driving features ISO 4757, ISO 10664
 Ends of parts ISO 1478

 Countersunk head ISO 7721

Surface finish ISO 4042 ISO 16048

ISO 10683
ISO 10684
Quality aspects ISO 3269, ISO 16426

3
IS 1367 (Part 1) : 2014
ISO 8992 : 2005

4 General requirements
Standardized bolts, screws, studs and nuts are defined by the following elements:

a) mechanical properties (property class, material);

b) product grade (tolerances);

c) standardized geometrical features (if any);

d) surface coatings (if required);

e) special requirements (if agreed).

All information relates to fully manufactured products. Specific manufacturing processes are not required,
except where they have been laid down in the individual standards or have been agreed between customer
and supplier.

The product shall have intact surfaces and edges and shall be free of burrs consistent with the manufacturing
methods used. It is not generally required that small burrs due to operations such as slotting, or resulting from
forging, pressing or trimming, be removed. Any burr which influences the performance of the product or would
be a safety hazard when handled, however, shall be removed.

Trimming burrs beyond the bearing face of bolts and screws is not permissible.

Centre holes for bolts and screws are permissible, unless otherwise specified.

Unless a surface coating is agreed, the surface finish of the products shall be

 as processed for steel products, or

 plain for products made of stainless steel or non-ferrous metal.

Bolts, screws, studs and nuts shall be delivered in a clean condition and lightly oiled, if no other conditions
have been agreed.

4
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This Indian Standard has been developed from Doc No.: PGD 31 (1198).

Amendments Issued Since Publication

______________________________________________________________________________________
Amendment No. Date of Issue Text Affected
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