DIN 9021   

*All measurements in millimeters (mm)*

d used for d1 max s
3.2 M3 9 0.8
4.3 M4 12 1
5.3 M5 15 1.2
6.4 M6 18 1.6
8.4 M8 24 2
10.5 M10 30 2.5
13 M12 37 3
15 M14 44 3
17 M16 50 3
20 M18 56 4
22 M20 60 4

All information is strictly informative