DIN 7991- the specification for Hexagon socket countersunk head cap screws

DIN 7991- the specification for Hexagon socket countersunk head cap screws

DIN 7991- the specification for Hexagon socket countersunk head cap screws

Countersunk Socket Cap Screw, are useful when an Allen key is needed to be used to tighten the bolt into place but a flush method is required, so preventing an Allen socket capscrew from being used.

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DIN 7991 Hex socket countersunk head cap screws schematic

All measurements in millimetres (mm)

d (thread size)dk (max)e (min)k (max)s (nom)t (min)
M3 6.72 2.303 1.86 2 1.1
M4 8.96 2.873 2.48 2.5 1.5
M5 11.2 3.443 3.1 3 1.9
M6 13.44 4.583 3.72 4 2.2
M8 17.92 5.723 4.96 5 3
M10 22.4 6.863 6.2 6 3.6
M12 26.88 9.149 7.44 8 4.3
M16 33.6 11.429 8.8 10 4.8
M20 40.32 13.716 10.16 12. 5.6

All data is strictly informative

Posted on 11/02/21 DIN Specifications 3376

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