| 標稱螺絲直徑 (螺牙外徑) mm | 力矩 | ||
I | II | III | |
徑長≤2.8 | 0.2 | 0.4 | 0.4 |
| 2.8<徑長≤3.0 | 0.25 | 0.5 | 0.5 |
| 3.0<徑長≤3.2 | 0.3 | 0.6 | 0.6 |
| 3.2<徑長≤3.6 | 0.4 | 0.8 | 0.6 |
| 3.6<徑長≤4.1 | 0.7 | 1.2 | 0.6 |
| 4.1<徑長≤4.7 | 0.8 | 1.8 | 0.9 |
| 4.7<徑長≤5.3 | 0.8 | 2.0 | 1.0 |
| 5.3<徑長 | 2.5 | 1.25 | |
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