Form A Washer (DIN 125A) Size Chart
Form A (DIN 125A) Washer Size Chart
| Nominal Size |
Internal Diameter (d1 min) [mm] |
External Diameter (d2 max) [mm] |
Thickness (s) [mm] |
| M2 |
2.2 |
5.0 |
0.3 |
| M2.5 |
2.7 |
6.0 |
0.5 |
| M3 |
3.2 |
7.0 |
0.5 |
| M3.5 |
3.7 |
8.0 |
0.5 |
| M4 |
4.3 |
9.0 |
0.8 |
| M5 |
5.3 |
10.0 |
1.0 |
| M6 |
6.4 |
12.0 |
1.6 |
| M7 |
7.4 |
14.0 |
1.6 |
| M8 |
8.4 |
16.0 |
1.6 |
| M10 |
10.5 |
20.0 |
2.0 |
| M12 |
13.0 |
24.0 |
2.5 |
| M14 |
15.0 |
28.0 |
2.5 |
| M16 |
17.0 |
30.0 |
3.0 |
| M18 |
19.0 |
34.0 |
3.0 |
| M20 |
21.0 |
37.0 |
3.0 |
| M22 |
23.0 |
39.0 |
3.0 |
| M24 |
25.0 |
44.0 |
4.0 |
| M27 |
28.0 |
50.0 |
4.0 |
| M30 |
31.0 |
56.0 |
4.0 |
| M33 |
34.0 |
60.0 |
5.0 |
| M36 |
37.0 |
66.0 |
5.0 |
| M39 |
40.0 |
72.0 |
6.0 |
| M42 |
43.0 |
78.0 |
7.0 |
