DIN 404
*All measurements in millimeters (mm)*
d
b
d
1
k
d
2
n
t max.
M3
19
5.5
4
1.5
0.8
1.25
M4
22
7
5
2
1
1.5
M5
25
8.5
6.5
2.5
1.2
2
M6
28
10
8
3
1.6
2.6
All information is strictly informative
DIN
404 
DIN
404