Hexagon screw, countersunk head
ISO 10642, stainless steel A4, plain
ISO 10642 A4 M3X40/40
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DIN 7991 has been withdrawn and replaced by ISO 10642. ISO 10642 replaces DIN 7991 | There are some limited consistencies (some screw head heights and diameters have been amended | the M18, M22, and M24 nominal diameters have been removed | stainless steel models have been removed | property classes 10.9 and 12.9 have been added).
Due to their head geometry, countersunk head screws have a limited load capacity according to this standard and possibly do not meet tensile or torsional strength requirements, see DIN EN ISO 3506-1
Datasheets(X)
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