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
Specifications page9
S-BT Screw-in threaded studs
Rework
Corrosion
Loosening
1.4 S-BTsystemfeaturesandbenets–simplied
fastening to steel
No rework:
Studweldingorthrough-bolting,forexample,mayrequirereworkingofthe
protectivesurfacecoating.WiththeS-BTsystem,thestudissetintoasmall
pre-drilled hole. In case of a pilot hole the drill entry point is then completely sealed
bythestudwasherduringsetting.Iftherealbasematerialthicknesst
II
exceeds
6mm[0.24"]noreworkoftheprotectivesurfacecoatingonthebacksideis
needed.
Simple and fast:
Aminimalamountoftrainingisallthatisrequiredforausertobeabletoinstallup
to100studsperhour.
High corrosion resistance:
ThestainlesssteelS-BTfastenersaremadefromtheduplexstainlesssteeltype
1.4462,whichisequivalenttoAISI316(A4)and318LNsteelgradeandsuitablefor
aggressiveenvironmentslikeincoastalandoffshoreapplications.
The coating of the carbon steel S-BT fasteners consists of an electroplated
Zn-alloyforcathodicprotectionandatopcoatforchemicalresistance(Duplex-
coating).Theuseofthiscoatingislimitedtoindoorenvironmentsandoutdoor
(nocoastal)environmentswithlowpollution.Refertosection5.10forselectionof
thesuitablefastenerintermsofcorrosion.
High tension and shear load values:
S-BTdeliversperformancecomparabletomethodssuchasstudwelding.
See load data tables in section 3.2 for details.
Fasten to all steel shapes:
Unlikeclamps,whicharelimitedbythecongurationofthebasesteel,theS-BT
isidealforuseonhollowsections,channelsections,wideangesandangles.
Fasten to thin steel and aluminum:
Inadditiontofasteningtostandardconstructionsteelt
II
≥6mm[0.24"](pilothole),
theS-BTcanalsobeusedtofastentoaluminumt
II
≥6mm[0.24"](pilothole)and
5mm[0.20"]≤t
II
<6mm[0.24"](drillthroughhole).
Furthermorefasteninginthinsteel3mm[0.12"]≤t
II
<6mm[0.24"](drillthrough
hole)ispossible.Incaseofadrillthroughhole,reworkofthecoatingontheback
sideoftheplate / prolemaybeneeded.
Cordless and Portable:
The cordless drilling and installation tools eliminate the need for electrical cords
andheavyweldingequipment.
No through-penetration for base material t
II
≥6mm[0.24"]:
Thespecialprocessofdrillingandinstallationresultsinsecurefastening
ofthefastenerwithoutthrough-penetrationofthebasematerial.Iftherealbase
materialthicknesst
II
exceeds6mm[0.24"]noreworkoftheprotectivesurface
coatingonthebacksideisneeded.