This standard applies to screw washer assemblies with captive conical spring washer, coarse thread from 2,5 to M12, property class 8.8 to 10,9.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 6900-5

Publication date: 9-2004 Supersedes DIN 6900: 12/1990

d Thread size

a max l2 min Washers Din 6908 : 1995
nom size h max d2 max
M 2.5
0.9
4
2.25
0.72
6
M 3
1
4
2.75
0.85
7
M3.5
1.2
6
3.2
1.06
8
M 4
1.4
6
3.6
1.3
9
M 5
1.6
6
4.55
1.55
11
M 6
2
8
5.5 2.6
14
M 8
2.5
10
7.4
3.1
18
M 10
3
12
9.3
3.6
23
M 12
3.5
14
11
4.1
29