| Technology | |||
 Screws |
|||
| Stamping Parts |
|||
| Machined Parts |
|||
| Pins |
|||
| Bolts |
|||
| Nuts |
|||
| Washers |
|||
| Rivets |
|||
| Hex Wrench |
|||
| Metric Threads Specification |
|||
| Screw Basic Knowledge |
|||
| Plastic & Nylon Parts |
|||
|
Technology
Torque for nuts
| Size | Torque | |||||||||||||||
| Grade | ||||||||||||||||
| 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | |||||||||
| min | max | min | max | min | max | min | max | min | max | min | max | min | max | min | max | |
| M3 | 0.7 | 1.1 | 0.9 | 1.3 | 0.7 | 1.1 | 0.8 | 1.2 | 1.1 | 1.6 | 1.2 | 1.7 | 1.5 | 2.3 | 1.8 | 2.7 |
| M4 | 1.6 | 2.4 | 2.1 | 3.1 | 1.6 | 2.4 | 1.9 | 2.5 | 2.5 | 3.7 | 3.7 | 4.1 | 3.7 | 5.3 | 4.2 | 6.2 |
| M5 | 3.2 | 4.8 | 4.2 | 6.3 | 3.2 | 4.8 | 3.8 | 5.6 | 5 | 7.4 | 5.6 | 8.2 | 7.2 | 10.6 | 8.4 | 12.4 |
| M6 | 5.4 | 8.1 | 7.1 | 10.7 | 5.4 | 8.1 | 6.4 | 9.5 | 8.4 | 12.4 | 9.5 | 14 | 12.1 | 17.8 | 14 | 20.8 |
| M7 | 9.2 | 13.7 | 12 | 17.9 | 9.3 | 13.8 | 10.7 | 16 | 14 | 16.9 | 16 | 23.6 | 20.2 | 30.2 | 24 | 35.2 |
| M8 | 13.2 | 19.8 | 17.3 | 26 | 13.3 | 20 | 15.5 | 23.1 | 20 | 30 | 23 | 34 | 29 | 43 | 34 | 50 |
| M10 | 26.3 | 39.5 | 34 | 52 | 26.4 | 39.6 | 30.6 | 45.9 | 41 | 60 | 46 | 68 | 59 | 85 | 69 | 100 |
| M12 | 45.8 | 68.7 | 60 | 90 | 46 | 69 | 53 | 80 | 71 | 105 | 80 | 118 | 102 | 150 | 119 | 175 |
| M14 | 73.8 | 109 | 95 | 143 | 73 | 110 | 85 | 127 | 112 | 168 | 127 | 187 | 161 | 240 | 189 | 282 |
| M16 | 113 | 170 | 148 | 223 | 115 | 173 | 133 | 199 | 175 | 260 | 198 | 292 | 250 | 371 | 293 | 434 |
| M18 | 161 | 242 | 211 | 317 | 158 | 238 | 183 | 273 | 255 | 372 | 353 | 513 | 415 | 603 | ||
| M20 | 229 | 344 | 300 | 450 | 224 | 336 | 260 | 389 | 355 | 520 | 491 | 718 | 574 | 840 | ||
| M22 | 312 | 468 | 408 | 613 | 303 | 454 | 351 | 527 | 500 | 705 | 675 | 989 | 787 |
1161 |
||
