ISO Metric Coarse
Metric thread - 60° profile
| Size | Pitch mm | Ext Major mm | Int Minor mm | Tap Drill Size mm |
|---|---|---|---|---|
| M1 | 0.25 | 1.0 | 0.729 | 0.75 |
| M1.1 | 0.25 | 1.1 | 0.829 | 0.85 |
| M1.2 | 0.25 | 1.2 | 0.929 | 0.95 |
| M1.4 | 0.30 | 1.4 | 1.075 | 1.1 |
| M1.6 | 0.35 | 1.6 | 1.221 | 1.25 |
| M1.8 | 0.35 | 1.8 | 1.421 | 1.45 |
| M2 | 0.40 | 2.0 | 1.567 | 1.6 |
| M2.2 | 0.45 | 2.2 | 1.713 | 1.75 |
| M2.5 | 0.45 | 2.5 | 2.013 | 2.05 |
| M3 | 0.50 | 3.0 | 2.459 | 2.5 |
| M3.5 | 0.60 | 3.5 | 2.85 | 2.9 |
| M4 | 0.70 | 4.0 | 3.242 | 3.3 |
| M4.5 | 0.75 | 4.5 | 3.688 | 3.75 |
| M5 | 0.80 | 5.0 | 4.134 | 4.2 |
| M6 | 1.00 | 6.0 | 4.917 | 5 |
| M7 | 1.00 | 7.0 | 5.917 | 6 |
| M8 | 1.25 | 8.0 | 6.647 | 6.75 |
| M9 | 1.25 | 9.0 | 7.647 | 7.75 |
| M10 | 1.50 | 10.0 | 8.376 | 8.5 |
| M11 | 1.50 | 11.0 | 9.376 | 9.5 |
| M12 | 1.75 | 12.0 | 10.106 | 10.25 |
| M14 | 2.00 | 14.0 | 11.835 | 12 |
| M16 | 2.00 | 16.0 | 13.835 | 14 |
| M18 | 2.50 | 18.0 | 15.294 | 15.5 |
| M20 | 2.50 | 20.0 | 17.294 | 17.5 |
| M22 | 2.50 | 22.0 | 19.294 | 19.5 |
| M24 | 3.00 | 24.0 | 20.752 | 21 |
| M27 | 3.00 | 27.0 | 23.752 | 24 |
| M30 | 3.50 | 30.0 | 26.211 | 26.5 |
| M33 | 3.50 | 33.0 | 29.211 | 29.5 |
| M36 | 4.00 | 36.0 | 31.67 | 32 |
| M39 | 4.00 | 39.0 | 34.67 | 35 |
| M42 | 4.50 | 42.0 | 37.129 | 37.5 |
| M45 | 4.50 | 45.0 | 40.129 | 41.5 |
| M48 | 5.00 | 48.0 | 42.587 | 43 |
| M52 | 5.00 | 52.0 | 46.587 | 47 |
| M56 | 5.50 | 56.0 | 50.046 | 50.5 |
| M60 | 5.50 | 60.0 | 54.046 | 54.5 |
| M64 | 6.00 | 64.0 | 57.505 | 58 |
| M68 | 6.00 | 68.0 | 61.505 | 62 |