DS 470 Iss 02
Data Sheet Sheet 1 of 4
Hilti Fixings into Bison “Tensyland” Precast Hollow Units
• The information in this document is given in good faith and is believed to be correct at time of publication.
It has been published jointly by Hilti (GB) Ltd and Bison Concrete Products Ltd. For further details, please contact the relevant
company directly.
• It is important when using Hilti equipment and products that standard safety procedures are observed and regulations
adhered to.
Introduction
Fixings are required into floor and soffits of slabs to support services
and decorative finishes in a completed building. In order for these
fixings to be fit for purpose, Hilti have carried out a series of tests
into Bison Tensyland Slabs using three different anchoring systems.
HKD-S Anchor
This is a shallow embedment depth anchor with an internal thread suitable in thread forms M6, M8 and M10.
The fixing is flush with the surface after setting. The anchor is placed in a drilled hole in the precast unit and set by driving a
central expansion cone into the the anchor with a purpose designed setting punch. The setting tool leaves a visible impression
on the end of the anchor to enable easy inspection to see that the fixing has been correctly installed.
This fixing is commonly used with set screws or threaded rod for plumbing, heating, air conditioning and ventilation installations,
pipe suspension, air ducts, etc, and also for securing channels, rails, plates, brackets and suspended ceilings.
Variations in thickness fastened can be accommodated using different length set screws or threaded rods. It can be loaded as
soon as it has been installed.
A fire rated fixing can be achieved by using HKD-S anchors.
HKD-S Anchor
Item no. Description Hole diameter
00242861 HKD-S M6 x 25 8mm
00242866 HKD-S M8 x 30 10mm
00243737 HKD-S M10 x 30 12mm
➡
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Setting
Marks
Hilti (Gt. Britain) Limited, 1 Trafford Wharf Road, Trafford Park, Manchester M17 1BY. Telephone: 0800 886 100
DS 470 Iss 02
Data Sheet Sheet 2 of 4
HUS Screw Anchor
This screw fastening is made straight into the concrete
without using a separate plug. A 6mm diameter hole is
drilled into the concrete slab and the HUS screw is driven
straight into the hole using an appropriate tangential
impact screwgun.
This fixing is available with the following head types:
– A flat head for fixing timber and soft materials.
– A hexagon head used for fixing for instance light duty
installation channels, light duty steel angles, mechanical
installation components and parts for interior panelling
or cladding.
– A metric connection thread for fastening light duty
pipe rings.
This fixing can be loaded as soon as it has been installed.
The HUS Screw fixing comes in a range of lengths to allow
for variations in thickness fastened.
A fire rated fixing can be achieved by using HUS Screw
fixings.
HUS Universal HUS-H Hexagon head HUS-A Metric connection thread
Item no. Description Item no. Description Item no. Description
00071260 HUS 7.5x35 00309340 HUS-H 7.5x35 00309346 HUS-A 7.5x45 M8
00071261 HUS 7.5x45 00309341 HUS-H 7.5x45 00309347 HUS-A 7.5x65 M8
00071278 HUS 7.5x60 00309342 HUS-H 7.5x60 00309348 HUS-A 7.5x45 M10
00071279 HUS 7.5x80 00309343 HUS-H 7.5x80 00309349 HUS-A 7.5x65 M10
00071280 HUS 7.5x100 00309344 HUS-H 7.5x100
00071281 HUS 7.5x120 00309345 HUS-H 7.5x120
00071282 HUS 7.5x140
00071283 HUS 7.5x160
00071284 HUS 7.5x180
00309350 HUS 7.5x200
00309351 HUS 7.5x220
For all sizes, the hole diameter is 6mm.
Hilti (Gt. Britain) Limited, 1 Trafford Wharf Road, Trafford Park, Manchester M17 1BY. Telephone: 0800 886 100
DS 470 Iss 02
Data Sheet Sheet 3 of 4
HIT HY 20 Injection Resin Anchor
This is a chemical anchoring system for hollow units which
produces a keyed fixing. This fixing is particularly suitable
for use with the smaller web thickness concrete units.
It consists of a specially formulated chemical mortar, a
sieve and a fastening insert, which can be either an anchor
rod or a threaded socket.
A hole is drilled into the unit penetrating the hollow core.
The sieve is placed in the drilled hole and filled with the
mortar.
The fastening element is then pushed into the mortar, which
displaces some through the sieve to form a mechanical key
into the hollow section.
The resin mortar must be allowed to cure before the fixing
is loaded.
System Components A fire rated fixing can be achieved by using HIT HY 20
Hilti HIT HY 20 Injection Technique fixings.
HIT HY 20 resin
Item no. 00229156
HIT sieve HIT-A anchor rod HIT-IG threaded socket
Item no. Description Item no. Description Item no. Description
00068613 HIT-S 16 00049767 HIT-A M6/65 00077485 HIT-IG M8
00068615 HIT-S 22 00334767 HIT-AN 8/100 00077486 HIT-IG M10
00334768 HIT-AN 10/110 00077487 HIT-IG M12
00334769 HIT-AN 12/115
Please note that threaded sockets with HIT HY 20 have not been tested for this application.
Setting Details (e.g. in hollow brick)
Hilti (Gt. Britain) Limited, 1 Trafford Wharf Road, Trafford Park, Manchester M17 1BY. Telephone: 0800 886 100
DS 470 Iss 01
Data Sheet Sheet 4 of 4
Technical / Design Data
Design resistances should be compared with the engineer’s factored load whereas recommended loads should be compared
with the unfactored load. If you are in doubt as to which value to use then use the recommended resistance.
Pre-cast unit type Web Hilti Fixing Description
Thickness
HKD-S HKD-S HKD-S HUS-H HIT HY 20 HIT HY 20
M6 x 25 M8 x x30 M10 x 30 7.5 S 16 Sieve S 22 Sieve
M12 Anchor rod M16 Anchor rod
Tensyland 25mm 0.9kN 0.3kN 0.6kN 1.0kN 2.0kN 2.3kN
150mm to 260mm
Resistance
Design
Tensyland 35mm 6.6kN 6.7kN 6.9kN 3.3kN 2.0kN 4.1kN
300mm to 450mm
Tensyland 25mm 0.7kN 0.2kN 0.4kN 0.7kN 1.4kN 1.6kN
Recommended
150mm to 260mm
Resistance
Tensyland 35mm 4.7kN 4.8kN 4.9kN 2.4kN 1.4kN 2.9kN
300mm to 450mm
Design Limitations (Spacing & Edge Distance)
The following table indicates minimum anchor spacings required for Hilti anchors installed longditudinally with the direction of
the core.
Hilti fixing Minimum anchor spacing Minimum anchor spacing for 3 or
Description for pair of anchors more longitudinally
HKD-S M6 x 25 100mm 300mm
HKD-S M8 x 30 100mm 300mm
HKD-S M10 x 30 100mm 300mm
HUS-H 7.5 50mm 100mm
HY 20 & M12 rod 75mm 150mm
HY 20 & M16 rod 75mm 150mm
Hilti
Technical Advisory Service
Telephone: 0161 886 1144
May 02 Compiled RL Approved: SB Item No. 00099049
Hilti (Gt. Britain) Limited, 1 Trafford Wharf Road, Trafford Park, Manchester M17 1BY. Telephone: 0800 886 100
Bison Concrete Products Ltd., Millennium Court, First Avenue, Burton on Trent DE14 2WR. Telephone: 01283 495000
