Standard torques for metric threads
Stolen from Northern Precision's website.
| Strength Class | M2x0.4 | M2.5×0.45 | M3x0.5 | M3.5×0.6 | M4x0.7 | M5x0.8 | M6x1.0 | M8x1.25 | M10x1.5 | M12x1.75 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4:6 | 0.17 | 0.36 | 0.57 | 1 | 1.3 | 2.7 | 4.5 | 11 | 21.8 | 38.1 |
| 4:8 | 0.17 | 0.36 | 0.76 | 1 | 1.8 | 3.6 | 6 | 14 | 29 | 50.8 |
| 5:6 | 0.17 | 0.36 | 0.71 | 1 | 1.7 | 3.3 | 5.7 | 13.8 | 27.3 | 47.6 |
| 5:8 | 0.17 | 0.36 | 0.95 | 1 | 2.2 | 4.5 | 7.6 | 18.4 | 36.4 | 64 |
| 6:6 | 0.17 | 0.36 | 0.85 | 1 | 2 | 4 | 6.8 | 16.5 | 32.8 | 57 |
| 8:8 | 0.31 | 0.65 | 1.5 | 1.8 | 3.5 | 7.1 | 12.1 | 29.4 | 58.3 | 101 |
| 9:8 | 0.31 | 0.65 | 1.7 | 1.8 | 4 | 8 | 13.6 | 33.1 | 66 | 114 |
| 10:9 | 0.42 | 0.86 | 2.1 | 2.4 | 5 | 10 | 17 | 41.3 | 82 | 143 |
| 12:9 | 0.42 | 0.86 | 2.6 | 2.4 | 6 | 12 | 20.4 | 49.6 | 98 | 171 |
