Phase 1 — reference & identification only. No shop, no accounts.

Button head screws

2 standards. ISO editions are listed first; each shows the DIN numbers it replaced, so a search for a DIN number lands on the right table.

ISOTitleSizesDataReplaces
ISO 7380-1Hexagon socket button head screws (ISO 7380-1)M3 – M168 sizes · Reviewed
ISO 7380-2Hexagon socket button head screws with collar (ISO 7380-2)M3 – M168 sizes · Reviewed

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