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ASME/ANSI B27.7-6-1999
Metric lock washers-Table 6
Nom
d max
d min
h max
h min
dc
Φ1
0.67
0.56
0.3
0.2
2
Φ2
1.33
1.22
0.3
0.2
4
Φ3
2.13
2.02
0.46
0.34
5.6
Φ4
2.93
2.82
0.66
0.54
7.2
Φ5
3.73
3.62
0.66
0.54
8.5
Φ6
4.73
4.62
0.66
0.54
11.1
Φ7
5.28
5.17
0.66
0.54
13.4
Φ8
6.2
6.05
0.66
0.54
14.6
Φ9
6.85
6.7
0.96
0.84
15.8
Φ10
7.65
7.5
0.96
0.84
16.8
Φ11
8.6
8.45
0.96
0.84
17.4
Φ12
9.25
9.1
1.16
1.04
18.6
Φ13
10
9.85
1.16
1.04
20.3
Φ15
11.5
11.25
1.16
1.04
22.8
Φ16
12.25
12
1.16
1.04
23.8
Φ18
14
13.75
1.36
1.24
27.2
Φ20
15.7
15.45
1.36
1.24
30
Φ22
17.1
16.85
1.36
1.24
33
Φ25
19.6
19.35
1.36
1.24
37.1
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