ISO Metric Fine
Metric thread - 60° profile
| Size | Pitch mm | Ext Major mm | Int Minor mm | Tap Drill Size mm |
|---|---|---|---|---|
| M1 | 0.20 | 1.0 | 0.783 | 0.8 |
| M1.2 | 0.20 | 1.2 | 0.983 | 1 |
| M1.4 | 0.20 | 1.4 | 1.183 | 1.2 |
| M1.6 | 0.20 | 1.6 | 1.383 | 1.4 |
| M1.8 | 0.20 | 1.8 | 1.583 | 1.6 |
| M2 | 0.25 | 2.0 | 1.729 | 1.75 |
| M2.5 | 0.35 | 2.5 | 2.121 | 2.1 |
| M3 | 0.35 | 3.0 | 2.621 | 2.6 |
| M3.5 | 0.35 | 3.5 | 3.121 | 3.1 |
| M4 | 0.50 | 4.0 | 3.459 | 3.5 |
| M5 | 0.50 | 5.0 | 4.459 | 4.5 |
| M6 | 0.75 | 6.0 | 5.188 | 5.2 |
| M7 | 0.75 | 7.0 | 6.188 | 6.2 |
| M8 | 0.75 | 8.0 | 7.188 | 7.2 |
| M8 | 1.00 | 8.0 | 6.917 | 7 |
| M10 | 1.00 | 10.0 | 8.917 | 9 |
| M10 | 1.25 | 10.0 | 8.647 | 8.8 |
| M12 | 1.25 | 12.0 | 10.647 | 10.8 |
| M12 | 1.50 | 12.0 | 10.376 | 10.5 |
| M14 | 1.50 | 14.0 | 12.376 | 12.5 |
| M16 | 1.50 | 16.0 | 14.376 | 14.5 |
| M18 | 1.50 | 18.0 | 16.376 | 16.5 |
| M18 | 2.00 | 18.0 | 15.835 | 16 |
| M20 | 1.50 | 20.0 | 18.376 | 18.5 |
| M20 | 2.00 | 20.0 | 17.835 | 18 |
| M22 | 1.50 | 22.0 | 20.376 | 20.5 |
| M22 | 2.00 | 22.0 | 19.835 | 20 |
| M24 | 2.00 | 24.0 | 21.835 | 22 |
| M27 | 2.00 | 27.0 | 24.835 | 25 |
| M33 | 2.00 | 33.0 | 30.835 | 31 |
| M36 | 3.00 | 36.0 | 32.752 | 33 |
| M39 | 3.00 | 39.0 | 35.752 | 36 |
| M42 | 3.00 | 42.0 | 38.752 | 39 |
| M45 | 3.00 | 45.0 | 41.752 | 42 |
| M48 | 3.00 | 48.0 | 44.752 | 45 |
| M52 | 4.00 | 52.0 | 47.67 | 48 |
| M56 | 4.00 | 56.0 | 51.67 | 52 |
| M60 | 4.00 | 60.0 | 55.67 | 56 |
| M64 | 4.00 | 64.0 | 59.67 | 60 |