BS 4464 B Standard Dimensioni per Single coil spring square washers for screws with cylindrical heads
Rondelle elastiche spaccate
Disegni dimensionali e diagrammi tecnici
Dimensioni chiave e parametri tecnici
|
Dimensions in mm - source BS 4464 Table B |
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| Publication Date: 05/1969 |
|
Thread size
|
d1 min
|
d2 max
|
b min |
b max
|
s min | s max |
|
M 3
|
3.1
|
5.5
|
1.2 |
1.4
|
0.7
|
0.9 |
|
M 3.5
|
3.6
|
6
|
1.2 |
1.4
|
0.7
|
0.9 |
|
M 4
|
4.1
|
6.95
|
1.4 |
1.6
|
0.8
|
1 |
|
M 5
|
5.1
|
8.55
|
1.7 |
1.9
|
1.1
|
1.3 |
|
M 6
|
6.1
|
9.6
|
2.35 |
2.65
|
1.5
|
1.7 |
|
M 8
|
8.2
|
12.75
|
2.85 |
3.15
|
1.9
|
2.1 |
|
M 10
|
10.2
|
15.9
|
3.3 |
3.7
|
2.05
|
2.35 |
|
M 12
|
12.2
|
17.9
|
3.8 |
4.2
|
2.35
|
2.65 |
|
M 14
|
14.2
|
21.1
|
4.3 |
4.7
|
2.85
|
3.15 |
|
M 16
|
16.3
|
24.3
|
4.8 |
5.2
|
3.3
|
3.7 |
|
M 18
|
18.3
|
26.4
|
4.8 |
5.2
|
3.3
|
3.7 |
|
M 20
|
20.3
|
30.5
|
5.8 |
6.2
|
3.8
|
4.2 |
|
M 22
|
22.4
|
32.7
|
5.8 |
6.2
|
3.8
|
4.2 |
|
M 24
|
24.4
|
35.7
|
6.75 |
7.25
|
4.8
|
5.2 |
|
M 27
|
27.5
|
38.9
|
6.75 |
7.25
|
4.8 | 5.2 |
|
M 30
|
30.5
|
43.9
|
7.75 |
8.25
|
5.75
|
6.25 |
| M 33 | 33.5 | 47 | 9.75 | 10.25 | 5.75 | 6.25 |
| M 36 | 36.5 | 52.1 | 9.75 | 10.25 | 5.75 | 6.25 |
| M 39 | 39.6 | 55.3 | 9.75 | 10.25 | 5.75 | 6.25 |
| M 42 | 42.6 | 60.3 | 11.75 | 12.25 | 6.75 | 7.25 |
| M 45 | 45.6 | 63.3 | 11.75 | 12.25 | 6.75 | 7.25 |
| M 48 | 48.8 | 66.5 | 11.75 | 12.25 | 6.75 | 7.25 |