S-BT Threaded Fastener Specification
Table Of Contents
- 1.1 Definition
- 1.2 The S-BT system
- 1.3 Fastening mechanism
- 1.4 S-BT system features and benefits – simplified fastening to steel
- 2.1 Grating fastening system
- 2.2 Grating fastening system X-FCS-R
- 2.3 S-BT with MM and MQ installation channel system
- 2.4 Fastening instrumentation, junction boxes and lighting
- 2.5 Fastening cable / conduit connectors
- 2.5 Fastening cable tray supports
- 2.7 Electrical connections
- 3.1 Product data
- 3.2 Load data
- 4.1 Instruction for use - S-BT-MF M6, M8, M10, W6, W10
- 4.2 Instruction for use - S-BT-MF M8/7 AN 6
- 4.3 Instruction for use - S-BT-MR M6, M8, M10, W6, W10 SN 6
- 4.4 Instruction for use - S-BT-MR M8/7 SN 6
- 4.5 Instruction for use - S-BT-MR M6, M8, M10, W6, W10 SN 6 AL
- 4.6 Instruction for use - S-BT-MR M8/7 SN 6 AL
- 4.7 Instruction for use - S-BT-GF M8/7 AN 6
- 4.8 Instruction for use - S-BT-GR M8/7 SN 6
- 4.9 Instruction for use - S-BT-GR M8/7 SN 6 AL
- 4.10 Instruction for use – S-BT-EF M6/W6/M8
- 4.11 Instruction for use – S-BT-EF M10/W10
- 4.12 Instruction for use – S-BT-ER M6/W6/M8
- 4.13 Instruction for use – S-BT-ER M10/W10
- 4.14 Instruction for use – S-BT-EF W10 HC AWG2/0 and S-BT-EF M10 HC 35/120
- 4.15 Instruction for use – S-BT-ER W10 HC AWG2/0 and S-BT-ER M10 HC 35/120
- 5.1 Nomenclature and symbols
- 5.2 Design concepts
- 5.3 Static capacity of the S-BT threaded stud
- 5.4 Vibration effects on S-BT threaded stud fastenings
- 5.5 Resistance of S-BT fastenings under dynamic tensile loading
- 5.6 Effect of S-BT threaded stud fastenings on the fatigue strength of base material structural steel
- 5.7 Influence of glue coatings on the loosening torque
- 5.8 S-BT-ER and S-BT-EF screw-in threaded studs for electrical connections
- 5.9.5 Conductivity disc of S-BT-ER / -EF electrical connectors
- 5.9.4 Stainless steel S-BT studs
- 5.9.3 Carbon steel S-BT studs
- 5.9.2 Galvanic (contact) corrosion
page 36 Specifications
Locallyexposedsteelwithshinyringafter
PFP-removaloperation
S-BTfastenerscrewedin
RepairedopeningofPFP-coating
3.2.15 Installation details: Fastening S-BT threaded studs with standoff
adaptertosteelwithapassivereprotection(PFP)coating
① Mark location for each fastening
② Remove PFP and predrill with TS-BT PFP stepped drill bit
UsageofSBT4-A22untilthebitshoulderexposessteelandtheshoul-
dergrindsashinyringtoensureaproperdrillingdepth.Resultisacircleof
exposedsteelwithØ7.5mmaswellasamaintainingsurroundingcoating
thickness≤500µm.
③ Screw in the S-BT fastener and check standoff
UsecalibrateddepthgaugeS-DGBT.Verifystudstandoffwiththecheckgauge
S-CGBT
④ Screw standoff adapter on the S-BT fastener
UsageofnutsetterS-NS
3
/
4
"95/3
3
/
4
"incombinationwithtorquetool
X-BT
1
/
4
"–8NmorHiltiscrewdriverswithcorrecttorquesettingT
rec
8Nm.
⑤ Repair removed PFP-coating outside of standoff adapter
PreventdelaminationofPFP-coatingaswellexposureofunderlyingsteel
beambypatchingareaoutsideofstandoffadapterinaccordancetothe
patchinginstructionsbythePFP-manufacturer.
⑥ Position channel or accessory on standoff adapter
UseboredplateMQZ-L9/11/Rasrequiredtoincreasecontactsurface
and/orcenterchannelonstandoffadapter.Tightennutsbyhand.
⑦ Tighten the nuts with recommended torque
UsageofnutsetterS-NS
3
/
4
"95/3
3
/
4
"incombinationwithtorquetool
X-BT
1
/
4
"–20NmorHiltiscrewdriverswithcorrecttorquesettingT
rec
20 Nm
T
rec
8 Nm 20Nm
Hilti screw driver: Torque setting:
SBT 4-A22 5 11
SF 4-A22 10 n.a.
SFC18-A 5 11
SFC 22-A 5 11
Important notes:
ThesettingofthetorqueviatheHiltiscrewdriverwithtorquereleasecoupling(TRC)
canchangeastheclutchwearsovertime.Thespeciedtorquesettingisonlya
roughguidevalueandappliestoanewHiltiscrewdriver.Hiltirecommendsusing
acalibratedtorquewrenchortheHiltiTorquetoolX-BT
1
/
4
"-8Nmtoapplythe
recommendedtorque.
Exceedingthetighteningtorque(T
rec
)leadstodamageoftheS-BTstud’s
anchoragewithnegativeimpactontheloadvaluesandthesealingfunction.