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DIN 7331 Standard Dimensions for Compression rivets

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Compression rivets

This standard DIN 7331 applies to compression rivets which consist of a riveting element (AN or BN) and a rivet head (K) which are joined. The riveting elements and rivet heads shall be obtained from the same manufacturer in order to achieve a correct assembly.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 7331

Publication date: 03 - 2011 supersedes edition 05 - 1993
d1 nom 2 3 3 4 4 4 4 4 5 5 6
d2 nom 4 6 7 7 8 9 11 13 10 12 12
d3 nom 4 6 6 8 8 8 10 10 11 11 12
d4 nom 5 7 7 9 9 9 11 11 12 12 13
k ≈ 1 1.2 1.2 1.6 1.6 1.6 1.6 1.6 2 2 2.4
l2 ≈ 2 3 3 4 4 4 4 4 5 5 6

Hole diameter and clamping length reference values
d1 2 3 4 4 5 6
d3 4 6 8 10 11 12
l1 clamping length l3
5 1.5÷2.5 1.5÷2.5
6 2.5÷3.5 2.5÷3.5 3.5÷4.5
7 3.5÷4.5 4.5÷5.5
8 4.5÷5.5 5.5÷6.5
9 6.5÷7.5 6.5÷7.5 5÷7 6÷7
10 7.5÷8.5 7.5÷8.5 6÷8 7÷8
12 9÷10 9÷10 7÷9 8÷9
15 9÷11 9÷11
18 11÷14 11÷14
22 14÷17
d5 2.2 3.3 4.3 4.3 4.4 6.4

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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