The outside diameter of the thread is the same as the inside diameter of the thread. It is not necessary for some users to specify the tolerance on the outside diameter of the thread, mM: thread diameter table for metric external thread 60 ° STANDARD COARSE THREAD:
| Specifications | Tooth pitch | Outside diameter of thread | Roll diameter | |
| MAX | MIN | ±0.02 | ||
| M1.4 | 0.3 | 1.38 | 1.34 | 1.16 |
| M1.7 | 0.35 | 1.68 | 1.61 | 1.42 |
| M2.0 | 0.4 | 1.98 | 1.89 | 1.68 |
| M2.3 | 0.4 | 2.28 | 2.19 | 1.98 |
| M2.5 | 0.45 | 2.48 | 2.38 | 2.15 |
| M3.0 | 0.5 | 2.98 | 2.88 | 2.6 |
| M3.5 | 0.6 | 3.47 | 3.36 | 3.02 |
| M4.0 | 0.7 | 3.98 | 3.83 | 3.4 |
| M4.5 | 0.75 | 4.47 | 4.36 | 3.88 |
| M5.0 | 0.8 | 4.98 | 4.83 | 4.3 |
| M6.0 | 1 | 5.97 | 5.82 | 5.18 |
| M7.0 | 1 | 6.97 | 6.82 | 6.18 |
| M8.0 | 1.25 | 7.96 | 7.79 | 7.02 |
| M9.0 | 1.25 | 8.96 | 8.79 | 8.01 |
| M10 | 1.5 | 9.96 | 9.77 | 8.84 |
| M11 | 1.5 | 10.97 | 10.73 | 9.84 |
| M12 | 1.75 | 11.95 | 11.76 | 10.7 |
| M14 | 1.75 | 13.95 | 13.74 | 12.5 |
| M16 | 2 | 15.95 | 15.74 | 14.5 |
| M18 | 2 | 17.95 | 17.71 | 16.2 |
| M20 | 2.5 | 19.95 | 19.71 | 18.2 |
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