METRICcoarse60° flank
M14 × 2 Thread Dimensions
M14 x 2 is a coarse pitch METRIC thread. Pitch is 2 mm, equivalent to 12.7 threads per inch. The recommended tap drill leaves roughly 75% thread engagement.
Nominal Ø14 mm
Pitch2 mm
Threads per inch12.7
Pitch Ø12.7 mm
Tap drill12 mm
Thread profile
millimetres unless stated- Designation
- M14 x 2
- Thread system
- METRIC
- Series
- coarse
- Flank angle
- 60°
- Major diameter
- 14 mm / 0.55"
- Pitch
- 2 mm
- Threads per inch
- 12.7
- Pitch diameter
- 12.7 mm
- Minor diameter (external)
- 11.55 mm
- Minor diameter (internal)
- 11.83 mm
- Thread depth
- 1.23 mm
- Recommended tap drill
- Ø 12 mm / 0.47"
How these values are derived
Basic ISO thread geometry uses the fundamental triangle height H = 0.866025 × P. External minor diameter d₃ = d − 1.226869 × P, internal minor diameter D₁ = d − 1.082532 × P. Tap drill is given as nominal diameter minus pitch, which approximates a 75% thread engagement — adjust for tough materials or deep holes.