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 30 Specifications
S-BT-MR / S-BT-MRMTwithcoupler
RC-MR 47/35 made of stainless steel
Base material
thickness
t
II
≥5mm[0.20"]
t
II
=4mm
[0.16"]
t
II
=3mm
[0.12"]
Base material type Steel
*)
S235
A36
Aluminium
R
m
≥270N/mm
2
Steel
*)
S235
A36
Steel
*)
S235
A36
Tension,N
rec
[kN/lb] 1.89/425 1.89/425 1.79/400 1.79/400
Shear,V
rec
[kN/lb]foredge
distancec≥15mm[0.59"]
0.34/75 0.29/65 0.34/75 0.29/65
S-BT-MF / S-BT-MFMTwithcoupler
RC-MF47/35madeofduplex-coatedcarbonsteel
Base material
thickness
t
II
≥5mm[0.20"]
t
II
=4mm
[0.16"]
t
II
=3mm
[0.12"]
Base material type Steel
*)
S235
A36
Aluminium
R
m
≥270N/mm
2
Steel
*)
S235
A36
Steel
*)
S235
A36
Tension,N
rec
[kN/lb] 1.96/440 n.a. 1.89/425 1.89/425
Shear,V
rec
[kN/lb]foredge
distancec≥15mm[0.59"]
0.34/75 n.a. 0.34/75 0.29/65
*)ForsteelbasematerialofgradeS355,S420,S390GD,S420GD,AH36,DH36,EH36thevaluesare
allowedtobeincreasedupto20%.
S-BT-MR / S-BT-MRMTwithcoupler
RC-MR 47/35 made of stainless steel
Base material
thickness
t
II
≥5mm[0.20"]
t
II
=4mm
[0.16"]
t
II
=3mm
[0.12"]
Base material type Steel
*)
S235
A36
Aluminium
R
m
≥270N/mm
2
Steel
*)
S235
A36
Steel
*)
S235
A36
Tension,N
Rd
[kN/lb] 2.65/595 2.65/595 2.50/560 2.50/560
Shear,V
Rd
[kN/lb]foredge
distancec≥15mm[0.59"]
0.48/105 0.40/90 0.48/105 0.40/90
S-BT-MF / S-BT-MFMTwithcoupler
RC-MF47/35madeofduplex-coatedcarbonsteel
Base material
thickness
t
II
≥5mm[0.20"]
t
II
=4mm
[0.16"]
t
II
=3mm
[0.12"]
Base material type Steel
*)
S235
A36
Aluminium
R
m
≥270N/mm
2
Steel
*)
S235
A36
Steel
*)
S235
A36
Tension,N
Rd
[kN/lb] 2.75/615 n.a. 2.65/595 2.65/595
Shear,V
Rd
[kN/lb]foredge
distancec≥15mm[0.59"]
0.48/105 n.a. 0.48/105 0.40/90
*)ForsteelbasematerialofgradeS355,S420,S390GD,S420GD,AH36,DH36,EH36thevaluesare
allowedtobeincreasedupto20%.
3.2.5 Recommended loads S-BT with Hilti coupler RC-MF and RC-MR
3.2.6 Design loads S-BT with Hilti coupler RC-MF and RC-MR
N
V
N
V