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Standard Metric Thread Pitch Chart
ISO Metric Screw Thread Standards. Use the search bar to find specific sizes.
| Nominal Size | Coarse Pitch (mm) | Fine Pitch (mm) | Extra Fine (mm) |
|---|---|---|---|
| M1 | 0.25 | 0.2 | - |
| M1.2 | 0.25 | 0.2 | - |
| M1.6 | 0.35 | 0.2 | - |
| M2 | 0.4 | 0.25 | - |
| M2.5 | 0.45 | 0.35 | - |
| M3 | 0.5 | 0.35 | - |
| M4 | 0.7 | 0.5 | - |
| M5 | 0.8 | 0.5 | - |
| M6 | 1.0 | 0.75 | - |
| M8 | 1.25 | 1.0 | 0.75 |
| M10 | 1.5 | 1.25 | 1.0 |
| M12 | 1.75 | 1.5 | 1.25 |
| M14 | 2.0 | 1.5 | 1.25 |
| M16 | 2.0 | 1.5 | - |
| M18 | 2.5 | 1.5 | 2.0 |
| M20 | 2.5 | 1.5 | 2.0 |
| M22 | 2.5 | 1.5 | 2.0 |
| M24 | 3.0 | 2.0 | - |
| M27 | 3.0 | 2.0 | - |
| M30 | 3.5 | 2.0 | - |
| M33 | 3.5 | 2.0 | - |
| M36 | 4.0 | 3.0 | - |
| M39 | 4.0 | 3.0 | - |
| M42 | 4.5 | 3.0 | - |
| M45 | 4.5 | 3.0 | - |
| M48 | 5.0 | 3.0 | - |
| M52 | 5.0 | 4.0 | - |
| M56 | 5.5 | 4.0 | - |
| M60 | 5.5 | 4.0 | - |
| M64 | 6.0 | 4.0 | - |
| M68 | 6.0 | 4.0 | - |
| M100 | 6.0 | 4.0 | - |