BS 4464 A Norma Dimensões para Single coil spring square washers for screws with cylindrical heads
Anilhas quadradas de mola helicoidal simples
Desenho dimensional e diagramas técnicos
Principais dimensões e parâmetros técnicos
|
Dimensions in mm - source BS 4464 Table A |
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| Publication Date: 05/1969 |
|
Thread size
|
d1 min
|
d2 max
|
s
|
h = 2 s±15%
|
b |
|
M 3
|
3.1
|
5.5
|
1
|
2
|
1
|
|
M 3.5
|
3.6
|
6
|
1
|
2
|
1
|
|
M 4
|
4.1
|
6.95
|
1.2
|
2.4
|
1.2
|
|
M 5
|
5.1
|
8.55
|
1.6
|
3
|
1.6
|
|
M 6
|
6.1
|
9.6
|
1.6
|
3
|
1.6
|
|
M 8
|
8.2
|
12.75
|
2
|
4
|
2
|
|
M 10
|
10.2
|
15.9
|
2.5
|
5
|
2.5
|
|
M 12
|
12.2
|
17.9
|
2.5
|
5
|
2.5
|
|
M 14
|
14.2
|
21.1
|
3
|
6
|
3
|
|
M 16
|
16.3
|
24.3
|
3.5
|
7
|
3.5
|
|
M 18
|
18.3
|
26.4
|
3.5
|
7
|
3.5
|
|
M 20
|
20.3
|
30.5
|
4.5
|
9
|
4.5
|
|
M 22
|
22.4
|
32.7
|
4.5
|
9
|
4.5
|
|
M 24
|
24.4
|
35.7
|
5
|
10
|
5
|
|
M 27
|
27.5
|
38.9
|
5
|
10 | 5 |
|
M 30
|
30.5
|
43.9
|
6
|
12 |
6
|
| M 33 | 33.5 | 47 | 6 | 12 | 6 |
| M 36 | 36.5 | 52.1 | 7 | 14 | 7 |
| M 39 | 39.6 | 55.3 | 7 | 14 | 7 |
| M 42 | 42.6 | 60.3 | 8 | 16 | 8 |
| M 45 | 45.6 | 63.3 | 8 | 16 | 8 |
| M 48 | 48.8 | 66.5 | 8 | 16 | 8 |