Thread Charts
Common metric thread sizes with a simple starting tap drill relationship. Use the required thread standard and tap manufacturer data for production work.
| Thread | Pitch | Basic Tap Drill |
|---|---|---|
| M6 × 1.0 | 1.0 mm | 5.0 mm |
| M8 × 1.25 | 1.25 mm | 6.75 mm |
| M10 × 1.5 | 1.5 mm | 8.5 mm |
| M12 × 1.75 | 1.75 mm | 10.25 mm |