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

Informace o normě:

Označení normy: BS 450:1958
Datum vydání normy: 30.6.1958
Počet stran: 48
Přibližná hmotnost: 144 g (0.32 liber)
Země: Britská technická norma
Kategorie: Technické normy BS

Anotace textu normy BS 450:1958 :

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