Metric Thread Calculator
Calculate metric thread specifications and tapping hole diameters for standard metric threads.
Thread Specifications
| Major Diameter: | - |
| Pitch: | - |
| Minor Diameter (approx): | - |
| Tapping Hole Size: | - |
| Clearance Hole Size: | - |
Metric Thread Reference Table
| Size | Pitch (mm) | Tap Hole (mm) | Clearance Ø (mm) | Minor Ø (mm) |
| M1 | 0.25 | 0.75 | 1.2 | 0.75 |
| M1.2 | 0.25 | 0.95 | 1.5 | 0.95 |
| M1.6 | 0.35 | 1.25 | 2.0 | 1.25 |
| M2 | 0.4 | 1.6 | 2.4 | 1.6 |
| M2.5 | 0.45 | 2.05 | 3.0 | 2.05 |
| M3 | 0.5 | 2.5 | 3.4 | 2.5 |
| M4 | 0.7 | 3.3 | 4.5 | 3.3 |
| M5 | 0.8 | 4.2 | 5.5 | 4.2 |
| M6 | 1.0 | 5.0 | 6.6 | 5.0 |
| M8 | 1.25 | 6.75 | 9.0 | 6.75 |
| M10 | 1.5 | 8.5 | 11.0 | 8.5 |