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DIN EN ISO 14581 Standard Dimensions for Hexalobular socket countersunk flat head screws

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Technical History and International Equivalents of DIN EN ISO 14581

Equivalent standards: UNI EN ISO 14581 ISO 14581 NF EN ISO 14581

Hexalobular socket countersunk flat head screws

This standard specifies the characteristics of hexalobular socket countersunk flat head screws in product grade A and with threads from M2 to M10 inclusive and with reduced loadability.

 

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source Din 14581 2011

Publication date 02/2014 Supersedes 03/2012
d thread size P b dk max=nom k max t min t max A
M 2 0.4 25 3.8 1.2 0.51 0.64 1.75 6
M 2.5 0.45 25 4.7 1.5 0.66 0.79 2.4 8
M 3 0.5 25 5.5 1.65 0.7 0.83 2.8 10
M 3.5 0.6 38 7.3 2.35 1.16 1.32 3.4 15
M 4 0.7 38 8.4 2.7 1.14 1.53 3.95 20
M 5 0.8 38 9.3 2.7 1.12 1.51 4 25
M 6 1 38 11.3 3.3 1.39 1.78 4.5 30
M 8 1.25 38 15.8 4.65 2.15 2.54 5.6 45
M 10 1.5 38 18.3 5 2.41 2.8 6.8 50

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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