DIN 137A SPEC

DIN 137A Specifications

DIN137B Curved Spring washer - product drawing - d1=ID, d2=OD, s=thickness, h=wave depth

All measurements in millimeters (mm)

d1 for screw d2 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