Active standard | Published: 30/06/1958

BS 450:1958

Specification for machine screws and machine screw nuts (B.S.W. & B.S.F. threads).

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Detail information

Designation: BS 450:1958

Publication date: 30/06/1958

Pages: 48

Country: British technical standard

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Anotation

Dimensions, tolerances and general requirements for sizes above and below 1 in. Covers screws of the following types: 90 degrees countersunk and raised countersunk, round, pan, cheese and mushroom with slotted and with recessed heads. Appendices on dimensions of hexagon head screws and hexagon precision nuts in sizes below 1 inch; flushness gauge for countersunk heads; penetration of standard gauge points for recessed heads; formulae for dimensions; tables of standard sizes. Status: Confirmed

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