Tornillo de cabeza hueca hexagonal. (ISO 4762:1997).
HEXAGON SOCKET HEAD CAP SCREWS. (ISO 4762:1997).
VIS À TÊTE CYLINDRIQUE À SIX PANS CREUX. (ISO 4762:1997).
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21.060.10 / Bolts, screws, studs
CTN 17 - Fasteners
EN ISO 4762:1997 (Identical)
ISO 4762:1997 (Identical)
It is cancelled by: UNE-EN ISO 4762:2005
Cancel: UNE 17056:1981