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UNI 6593 Standard Dimensions for Plain washers - Large series

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This norm has been cancelled

Washers with outside diameter ≈ 3/4 × nominal trhead diameter

Dimensional Drawing and Technical Diagrams

1131_716E4k_7093.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source UNI 6593 Withdrawn

Publication date: 12-1969
Thread size
d nom=min
d1 nom=max
s nom
M 3 3.2 9 0.8
3.2 12 1
M 4 4.3 12 1
4.5 12 1.5
4.3 16 1.5
M 5 5.5 15 1.5
5.3 20 1.5
M 6 6.5 18 1.5
6.5 18 2
6.5 24 2
M 7 7.6 21 2
7.5 28 2
M 8 8.5 24 2
78.5 32 2.5
M 9 9.6 27 2.5
9.6 36 2.5
M 10 10.5 30 2.5
10.5 40 2.5
M 12 13 36 2.5
13 48 2.5
M 14 14.5 36 2.5
15 42 2.5
15 56 3
M 16 17 48 3
16.5 64 3
M 18 18.5 48 4
18.3 64 5
19 55 4
19 72 4
M 20 21 60 4
21.5 80 5

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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