Technical History and International Equivalents of DIN EN ISO 14580

Hexalobular socket screws with reduced head

This standard (DIN 14580 and equivalents) specifies the characteristics of hexalobular socket cheese head screws of product grade A, and with thread sizes from M2 up to and including M10.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source Din 14580 2011

Publication date 06/2011 Supersedes 03/2006

d thread size P dk nom=max k nom=max w min Hexalobular socket
Socket Nr A t min t max
M 2 0.4 3.8 1.55 0.5 6 1.75 0.71 0.84
M 2.5 0.45 4.5 1.85 0.7 8 2.4 0.78 0.91
M 3 0.5 5.5 2.4 0.75 10 2.8 1.01 1.27
M 3.5 0.6 6 2.6 1 15 3.35 1.07 1.33
M 4 0.7 7 3.10 1.1 20 3.95 1.27 1.66
M 5 0.8 8.5 3.65 1.3 25 4.5 1.52 1.91
M 6 1 10 4.4 1.6 30 5.6 1.9 2.29
M 8 1.25 13 5.8 2 45 7.95 2.66 3.05
M 10 1.5 16 6.9 2.4 50 8.95 3.04 3.43

Din 14580 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial items

d thread size M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6 M 8 M 10
nominal length l
3 0.16 0.272
4 0.179 0.302 0.515
5 0.198 0.332 0.56 0.786 1.09
6 0.217 0.362 0.604 0.845 1.17 2.06
8 0.254 0.422 0.692 0.966 1.33 2.3 3.56
10 0.291 0.482 0.78 1.08 1.47 2.55 3.92 7.85
12 0.329 0.542 0.868 1.2 1.63 2.8 4.27 8.49 14.6
14 0.365 0.602 0.956 1.32 1.79 3.05 4.62 9.13 15.6
16 0.402 0.662 1.04 1.44 1.95 3.3 4.98 9.77 16.6
20 0.478 0.782 1.22 1.68 2.25 3.78 5.69 11 18.6
25 0.932 1.44 1.98 2.64 4.4 6.56 12.6 21.1
30 1.66 2.28 3.02 5.02 7.45 14.2 23.6
35 2.57 3.41 5.62 8.25 15.8 26.1
40 3.8 6.25 9.2 17.4 28.6
45 6.88 10 18.9 31.1
50 7.5 10.9 20.6 33.6
55 11.8 22.1 36.1
60 12.7 23.7 38.6
65 25.2 41.1
70 26.8 43.6
75 28.3 46.1
80 29.8 48.6