Installation Typicals - Fastening on Steel Threaded Studs
FASTENING CANTILEVER SUPPORT
WITH S-BT
Two / Four S-BT-MR / S-BT-MF Threaded studs
Technical assessment — maximum of L1 and F (depending on load F or lever arm length L1 and S-BT distance x)
FASTENER OVERVIEW
S-BT-MR / S-BT-MF • Imperial
x
x
2 studs
4 studs
APPLICATION OVERVIEW HOW TO USE THIS DOCUMENT DISCLAIMER
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FASTENER TECHNICAL DETAILS
FASTENER SYSTEM
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
3.0
22.00 14.00 10.00 6.00 3.75 2.75 1.75 1.25
4.0
29.50 18.75 13.25 8.00 5.25 3.50 2.50 1.75
5.0
37.00 23.50 16.75 10.00 6.50 4.50 3.25 2.25
6.0
44.25 28.00 20.00 12.00 7.75 5.50 3.75 2.75
7.0
51.75 32.75 23.25 14.00 9.25 6.25 4.50 3.00
8.0
59.00 37.5 0 26.75 16.00 10.50 7. 25 5.25 3.50
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
3.0
300 172 121 93 76 64 55 48
4.0
369 219 156 121 99 83 72 64
5.0
427 261 188 147 121 102 89 78
6.0
478 300 219 172 142 121 105 93
7.0
522 336 248 196 162 138 121 107
8.0
561 369 275 219 182 156 136 121
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
3.0
150 86 60 47 38 32 27 24
4.0
184 109 78 60 49 42 36 32
5.0
214 131 94 74 60 51 44 39
6.0
239 150 109 86 71 60 52 47
7.0
261 168 124 98 81 69 60 54
8.0
280 184 137 109 91 78 68 60
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
3.0
10.00 6.00 4.00 2.00 1.00 0.25
4.0
13.50 8.00 5.25 2.75 1.25 0.50
5.0
16.75 10.00 6.75 3.25 1.50 0.50
6.0
20.00 12.00 8.00 4.00 2.00 0.75
7.0
23.50 14.00 9.25 4.50 2.25 0.75
8.0
26.75 16.00 10.75 5.25 2.50 1.00
NOTE: load capacity used for calculation N
rec
= 405 lb (axial) / V
rec
= 585 lb (shear)
Application
• Fastening of cable trays, pipes on a horizontal cantilever support, fastened on
a vertical structure
• Support is fastened by two / four S-BT on both support and brace baseplate
with distance x
• L1 is the distance of the load center to the vertical structure surface
• Load F is the acceptable total load (all dead load including)
Boundary conditions
• These values are ONLY reflecting capacity of S-BT threaded stud. Structural
analysis of support / structure is NOT in Hilti scope. See the detailed
statements in disclaimer — 2018/05/04
• Shear load fully carried by one / two top S-BT (worst-case)
• Load F acting at the distance of L1 from structure surface
85
Issued August 2018, expiry January 2022