Standard: ISO (Coarse)
Nominal Thread (D)
Wrench Size (S)
M4
0.70
7.0
M5
0.75
9.0
M6
0.80
10.0
M8
1.25
14.0
M10
1.50
17.0
M12
1.75
19.0
M14
2.00
22.0
M16
24.0