Installation Typicals - Fastening on Steel Threaded Studs
APPLICATION OVERVIEW HOW TO USE THIS DOCUMENT DISCLAIMER
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Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
4.0
46.00 29.75 21.75 13.50 9.50 7. 00 5.50 4.25
6.0
61.25 39.75 29.00 18.00 12.75 9.50 7. 25 5.75
8.0
76.50 49.75 36.25 22.75 16.00 12.00 9.25 7. 25
14.0
92.00 59.50 43.50 27.25 19.25 14.25 11.00 8.75
20.0
107.25 69.50 50.75 31.75 22.25 16.75 13.00 10.25
32.0
122.75 79.50 58.00 36.25 25.50 19.00 14.75 11.75
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
4.0
570 334 237 183 149 126 109 96
6.0
692 422 303 237 194 164 143 126
8.0
794 500 365 287 237 201 175 155
14.0
881 570 422 334 277 237 206 183
20.0
955 634 475 379 316 271 237 210
32.0
1,019 692 524 422 353 303 266 237
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
4.0
285 167 118 91 75 63 54 48
6.0
346 211 151 118 97 82 71 63
8.0
397 250 182 143 118 101 88 77
14.0
440 285 211 167 138 118 103 91
20.0
477 317 237 190 158 135 118 105
32.0
510 346 262 211 176 151 133 118
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
4.0
21.75 13.75 9.75 5.50 3.50 2.25 1.50 1.00
6.0
29.00 18.25 12.75 7. 50 4.75 3.00 2.00 1.25
8.0
36.25 22.75 16.00 9.25 6.00 4.00 2.50 1.50
14.0
43.50 27.2 5 19.25 11. 25 7.0 0 4.75 3.00 2.00
20.0
50.75 32.00 22.50 13.00 8.25 5.50 3.50 2.25
32.0
58.00 36.50 25.75 15.00 9.50 6.25 4.00 2.50
FASTENER OVERVIEW
S-BT-MR / S-BT-MF • Imperial
Technical assessment — maximum of L1 and F (depending on load F or lever arm length L1 and baseplate distance x)
FASTENING BRACED CANTILEVER SUPPORT
WITH S-BT
Two / Four S-BT-MR / S-BT-MF Threaded studs
4 studs
2 studs
1 stud
x
x
2 studs
FASTENER TECHNICAL DETAILS
FASTENER SYSTEM
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
4.0
20.25 15.75 11.25 9.00 7.75 6.75 6.00
6.0
30.50 23.75 17. 00 13.50 11.50 10.25 9.25
8.0
40.75 31.75 22.50 18.00 15.50 13.50 12.25
14.0
71.25 55.50 39.75 31.75 27.0 0 23.75 21.50
20.0
102.00 79.25 56.75 45.50 38.75 34.00 31.00
32.0
163.25 127.0 0 90.75 72.75 62.00 54.75 49.50
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
4.0
779 389 259 195
6.0
1,168 584 389 292 234 195
8.0
779 519 389 312 259 222 195
14.0
909 682 545 454 389 341
20.0
974 779 649 556 487
32.0
1,039 890 779
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
4.0
389 195 130 97
6.0
584 292 195 146
8.0
389 259 195
14.0
454 341
20.0
487
32.0
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
4.0
15.75 11. 25 9.00 6.75 5.50 4.50
6.0
23.75 17.00 13.50 10.25 8.50 7.00
8.0
31.75 22.50 18.00 13.50 11.25 9.25
14.0
55.50 39.75 31.75 23.75 20.00 16.25
20.0
79.25 56.75 45.50 34.00 28.50 23.25
32.0
127.00 90.75 72.75 54.75 45.50 37. 25
Application
• Fastening of cable trays, pipes on a horizontal, braced cantilever support,
fastened on a vertical structure
• Support is fastened by three / six S-BT on both support and brace baseplate
with distance x
• L1 is the distance of the load center to the vertical structure surface, the angle
of the brace is 45°
• 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
NOTE: load capacity used for calculation N
rec
= 405 lb (axial) / V
rec
= 585 lb (shear)
86Issued August 2018, expiry January 2022