M6 Tap Drill Size and Drill Bit for M6 Thread
Use a 5.0mm drill bit
M6×1.0 · 0.1969 in / 5 mm · ~75% thread
M6 is a common ISO metric machine screw thread. The tap drill is major minus pitch: 6.0 minus 1.0 equals 5.0 mm.
At a glance
| Tap drill | 5.0mm |
|---|---|
| Inches | 0.1969 in |
| Millimetres | 5 mm |
| Major diameter | 6 mm |
| Pitch | 1 mm |
| Fine pitch | M6×0.75 → drill 5.25 mm |
Why this size
drillØ = major − pitch = 6 − 1 = 5.00 mm → tap drill 5.0mm
For M6 x 0.75 fine pitch the drill is 5.25 mm. For M6 x 1.0 the standard tap drill is 5.0 mm.
Related sizes
Compare with adjacent threads – coarse, fine and the opposite measurement system: