DIN 6916

*All measurements in millimeters (mm)* 

d used for d1 h c e approx.
13 M12 24 3 1.6 0.5
17 M16 30 4 1.6 1
21 M20 37 4 2 1
23 M22 39 4 2 1
25 M24 44 4 2 1
28 M27 50 5 2.5 1
31 M30 56 5 2.5 1
37 M36 66 6 3 1.5

 All information is strictly informative