TORQUE SPECIFICATIONS
HEX HEAD CAP SCREWS
The torque values shown should be used as a general guideline when specific torque values are not given.
Shank Size (Diameter in inches, fine or coarse thread)
U.S. Standard Hardware
| Grade | SAE Grade 5 | SAE Grade 8 |
| Flangelock Screw | ||||||
|
|
|
|
|
|
|
|
| w/Flangelock Nut | ||
| ft./lbs |
| Nm |
| ft./lbs | Nm |
| ft./lbs | Nm |
| ft./lbs |
|
|
|
|
| |||||||
| ¼ |
| 9 |
| 12 | 13 |
| 18 |
|
|
|
| 5/16 |
| 18 |
| 24 | 28 |
| 38 | 24 |
| 33 |
| 3/8 |
| 31 |
| 42 | 46 |
| 62 | 40 |
| 54 |
| 7/16 |
| 50 |
| 68 | 75 |
| 108 |
|
|
|
| ½ |
| 75 |
| 102 | 115 |
| 156 |
|
|
|
| 9/16 |
| 110 |
| 150 | 165 |
| 224 |
|
|
|
| 5/8 |
| 150 |
| 203 | 225 |
| 305 |
|
|
|
| ¾ |
| 250 |
| 339 | 370 |
| 502 |
|
|
|
| 7/8 |
| 378 |
| 513 | 591 |
| 801 |
|
|
|
| 11/8 |
| 782 |
| 1060 | 1410 |
| 1912 |
|
|
|
** Grade 5 - Minimum commercial quality (lower quality not recommended)
Shank Size (Diameter in millimeters, fine or coarse thread)
Metric Standard Hardware
| Grade | Grade 8.8 |
| Grade 10.9 |
| Grade 12.9 | |||||
| ft./lbs |
| Nm |
| ft./lbs | Nm |
| ft./lbs | Nm |
| ft./lbs |
|
|
|
|
| |||||||
| M4 |
| 1.5 |
| 2 | 2.2 |
| 3 | 2.7 |
| 3.6 |
| M5 |
| 3 |
| 4 | 4.5 |
| 6 | 5.2 |
| 7 |
| M6 |
| 5.2 |
| 7 | 7.5 |
| 10 | 8.2 |
| 11 |
| M7 |
| 8.2 |
| 11 | 12 |
| 16 | 15 |
| 20 |
| M8 |
| 13.5 |
| 18 | 18.8 |
| 25 | 21.8 |
| 29 |
| M10 |
| 24 |
| 32 | 35.2 |
| 47 | 43.5 |
| 58 |
| M12 |
| 43.5 |
| 58 | 62.2 |
| 83 | 75 |
| 100 |
| M14 |
| 70.5 |
| 94 | 100 |
| 133 | 119 |
| 159 |
| M16 |
| 108 |
| 144 | 147 |
| 196 | 176 |
| 235 |
| M18 |
| 142 |
| 190 | 202 |
| 269 | 242 |
| 323 |
| M20 |
| 195 |
| 260 | 275 |
| 366 | 330 |
| 440 |
| M22 |
| 276 |
| 368 | 390 |
| 520 | 471 |
| 628 |
| M24 |
| 353 |
| 470 | 498 |
| 664 | 596 |
| 794 |
| M27 |
| 530 |
| 707 | 474 |
| 996 | 904 |
| 1205 |
