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NF E25-522-1999
Plain washers for tapping screw and washer assemblies—Type L，normal series
Nom
d min
d max
dc max
dc min
h max
h min
Φ2.2
1.9
2
7
6.64
1.06
0.94
Φ2.9
2.5
2.6
9
8.64
1.06
0.94
Φ3.5
3
3.1
11
10.57
1.06
0.94
Φ4.2
3.55
3.67
12
11.57
1.06
0.94
Φ4.8
4
4.12
15
14.57
1.68
1.52
Φ5.5
4.7
4.82
15
14.57
1.68
1.52
Φ6.3
5.4
5.52
18
17.57
1.68
1.52
Φ8
7.15
7.3
24
23.48
2.09
1.91
Φ9.5
8.8
8.95
30
29.48
2.59
2.41
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