3.2.16.3 APPLICATION
3.2.16.3.1 STANDOFF ADAPTOR WITH S-BT THREADED STUDS
Direct Fastening Technical Guide , Edition 24
S-BT threaded studs with Hilti standoff adapter for attaching instrumentation . junction boxes , lighting , installation channel systems etc . to steel with a Passive Fire Protection ( PFP ) coating or insulated steel members e . g . instulated bulkheads .
Installation Instructions Installation Instructions For Use ( IFU ) are included 1 with each product package 2.0 . They can also be viewed or downloaded online at www . hilti . com . Because of the possibility of changes , always verify that downloaded 1
IFU are current when 2.0 used .
1 2.0
Proper installation is critical to achieve full performance 2.1 . Training ! is available on request . Contact Hilti Technical Services for applications and conditions not addressed in the IFU .
2.1 ! !
2.1 !
!
!
Mark location of each fastening .
3
Pre-drill with TS-BT stepped drill bit .
4
Trec
Pre-drill until shoulder grinds a shiny ring . The drilled hole and the area around drilled hole must be clean and free from liquids and debris .
3 |
4 |
Trec |
Trec |
3 |
4 |
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Trec |
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Trec |
Screw-in S-BT studs into drilled hole .
Screw-on the Hilti standoff adapter on the S-BT stud and tighten it with the suited installation torque .
Trec Position channel on standoff adapter and hold in place . Tighten the nuts with a tightening torque T rec of 20 Nm .
Tightening torque ( standoff adapter on S-BT )
T rec
= 8 Nm
T rec
= 5 Nm 1 )
1 ) for steel base material thickness 3 mm ≤ tII < 5 mm
Tightening torque ( nut on standoff adapter )
T rec
= 20 Nm
Fasten the accessory on the channel with the suited installation torque .
Notes : 1 . See section 3.2.16.5 and 3.2.15 for more detailed instructions on the setting procedure for S-BT threaded studs . 2 . The Standoff Adaptor can be used with X-BT threaded studs for applications similar to those shown above . It can also be used with both the X-BT and S-BT where Passive Fire Protection
( PFP ) coating is present . The installation process is similar but includes removal of a plug of the PFP . See application instructions 3.2.16.3.2 below for more information .
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