Metric Thread Pitch Chart

Metric Thread Pitch Chart

Bolt Diameter (mm)

 

 Thread Pitch (mm)
Standard Fine Super Fine or Extra JIS
2 .40 - - .40
2.5 .45 - - .45
3 .50 - - .50
4 .70 - - .70
5 .80 - - .80
6 1.00 - - 1.00
7 1.00 - - 1.00
8 1.25 1.00 - 1.25
10 1.50 1.25 1.25 1.25
12 1.75 1.50 - 1.25
14 2.00 1.50 - 1.50
16 2.00 - - 1.50
18 2.50 - - 1.50
20 2.50 - - 1.50