BS 4464A Metric Spring Washers Type A
Dimensions of Metric Spring Washers Type A (Single Coil, Square Section)
| Nom Size |
ø D1 |
ø D2 |
T |
Radius, R |
| Max |
Min |
Max |
Max |
Min |
Max |
| M3 |
3.3 |
3.1 |
5.5 |
1.1 |
0.9 |
0.3 |
| M3.5 |
3.8 |
3.6 |
6.0 |
1.1 |
0.9 |
0.3 |
| M4 |
4.35 |
4.1 |
6.95 |
1.3 |
1.1 |
0.4 |
| M5 |
5.35 |
5.1 |
8.55 |
1.6 |
1.4 |
0.5 |
| M6 |
6.4 |
6.1 |
9.6 |
1.6 |
1.4 |
0.5 |
| M8 |
8.55 |
8.2 |
12.75 |
2.1 |
1.9 |
0.65 |
| M10 |
10.6 |
10.2 |
15.9 |
2.65 |
2.35 |
0.8 |
| M12 |
12.6 |
12.2 |
17.9 |
2.65 |
2.35 |
0.8 |
| M14 |
14.7 |
14.2 |
21.1 |
3.2 |
2.8 |
1.0 |
| M16 |
16.9 |
16.3 |
24.3 |
3.7 |
3.3 |
1.15 |
| M18 |
19.0 |
18.3 |
26.4 |
3.7 |
3.3 |
1.15 |
| M20 |
21.1 |
20.3 |
30.5 |
4.7 |
4.3 |
1.5 |
| M22 |
23.3 |
22.4 |
32.7 |
4.7 |
4.3 |
1.5 |
| M24 |
25.3 |
24.4 |
35.7 |
5.2 |
4.8 |
1.65 |
| M27 |
28.5 |
27.5 |
38.9 |
5.2 |
4.8 |
1.65 |
| M30 |
31.5 |
30.5 |
43.9 |
6.2 |
5.8 |
2.0 |
| M33 |
34.6 |
33.5 |
47.0 |
6.2 |
5.8 |
2.0 |
| M36 |
37.6 |
36.5 |
52.1 |
7.25 |
6.75 |
2.3 |
| M39 |
40.8 |
39.6 |
55.3 |
7.25 |
6.75 |
2.3 |
| M42 |
43.8 |
42.6 |
60.3 |
8.25 |
7.75 |
2.65 |
| M45 |
46.8 |
45.6 |
63.3 |
8.25 |
7.75 |
2.65 |
| M48 |
50.0 |
48.8 |
66.5 |
8.25 |
7.75 |
2.65 |
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