Aktivní norma | Vydána: 25.09.1972

BS 4174:1972

Specification for self-tapping screws and metallic drive screws.

Dostupné jazyky: Anglicky

Dostupné provedení: PDF - okamžité stažení, Tištěné

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Podrobné informace

Označení: BS 4174:1972

Datum vydání: 25.09.1972

Stran: 52

Země: Britská technická norma

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Anotace

Ferrous and non-ferrous. Gives general dimensions for countersunk, raised countersunk and pan head tapping screws with slotted or recessed heads, slotted mushroom heads, recessed flange heads and hexagon head tapping screws and round head metallic drive screws. Gauges for head flushness for corrosion head screws and for checking recess penetration of recessed head screws, together with testing requirements and a box with hole sizes also given. Status: Confirmed Replaced by: Confirmed

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