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UNI 5931 Standard Dimensions for Socket screws with flange

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Technical History and International Equivalents of UNI 5931

This norm has been cancelled
This norm has been replaced by UNI EN ISO 4762

Hexagon socket head cap screws - ISO metric coarse and fine pitch thread - product grade A

It establishes the characteristics of hexagon socket head cap screws with coarse pitch thread ranging from m1,6 to m56 and fine pitch thread ranging from m8x1 to m56x4, product grade A

Dimensional Drawing and Technical Diagrams

2_TNJV0a_912-singola.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source UNI 5931
Publication date: 12/1984
d thread size

P

coarse thread

P

fine thread

 dk max dk min k max k min s nom

t min

 b
M 1.6 din 912 0.35 - 3.14 2.86 1.6 1.46 1.5 0.7 15
M 2 din 912 0.4 - 3.98 3.62 2 1.86 1.5 1 16
M 2.5 din 912 0.45 - 4.68 4.32 2.5 2.36 2 1.1 17
M 3 din 912 0.5 - 5.68 5.32 3 2.86 2.5 1.3 18
M 4 din 912 0.7 - 7.22 6.78 4 3.82 3 2 20
M 5 din 912 0.8 - 8.72 8.28 5 4.82 4 2.5 22
M 6 din 912 1 - 10.22 9.78 6 5.7 5 3 24
M 8 din 912 1.25 1 13.27 12.73 8 7.64 6 4 28
M 10 din 912 1.5 1.25 16.27 15.73 10 9.64 8 5 32
M 12 din 912 1.75 1.25 18.27 17.73 12 11.57 10 6 36
M 14 din 912 2 1.5 21.33 20.67 14 13.57 12 7 40
M 16 din 912 2 1.5 24.33 23.67 16 15.57 14 8 44
M 18 din 912 2.5 1.5 27.33 26.67 18 17.57 14 9 48
M 20 din 912 2.5 1.5 30.33 29.67 20 19.48 17 10 52
M 22 din 912 2.5 1.5 33.39 32.61 22 21.48 17 11 56
M 24 din 912 3 2 36.39 35.61 24 23.48 19 12 60
M 27 din 912 3 2 40.39 39.61 27 26.48 19 13.5 66
M 30 din 912 3.5 2 45.39 44.61 30 29.48 22 15.5 72
M 33 din 912 3.5 2 50.39 49.61 33 32.38 24 18 78
M 36 din 912 4 3 54.46 53.54 36 35.38 27 19 84

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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