DIN 137
Form A = Curved

*All measurements in millimeters (mm)* 

d

for screw

d1

s

2.2

M2

4.5

0.3

2.8

M2.5

5.5

0.3

3.2

M3

6

0.4

3.7

M3.5

7

0.4

4.3

M4

8

0.5

5.3

M5

10

0.5

6.4

M6

11

0.5

7.4

M7

12

0.5

8.4

M8

15

0.5

10.5

M10

18

0.8

 All information is strictly informative