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ISO 7416-1984
Plain washers,chamfered,hardened and tempered for high-strength structural bolting
Nom
d min
d max
dc min
dc max
h min
h max
c
Φ12
13
13.27
23.7
25
3.4
4.6
0.5
Φ16
17
17.27
31.4
33
3.4
4.6
1
Φ20
21
21.33
38.4
40
3.4
4.6
1
Φ22
23
23.33
40.4
42
3.4
4.6
1
Φ24
25
25.33
45.4
47
3.4
4.6
1
Φ27
28
28.52
50.4
52
4.4
5.6
1
Φ30
31
31.62
54.1
56
4.4
5.6
1
Φ36
37
37.62
64.1
66
4.4
5.6
1
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