BS 450-1958 机用螺钉与机用螺母(B.S.W和 B.S.F螺纹)规范

标准号：BS 450-1958
中文标准名称：机用螺钉与机用螺母(B.S.W和 B.S.F螺纹)规范
英文标准名称：Specification for machine screws and machine screw nuts (B.S.W. & B.S.F. threads)
标准类型：J13
发布日期：1958/6/30 12:00:00
实施日期：1958/6/30 12:00:00
中国标准分类号：J13
国际标准分类号：21.060.10;21.060.20
适用范围：Dimensions, tolerances and general requirements for sizes above and below $9D 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 $9D inch; flushness gauge for countersunk heads; penetration of standard gauge points for recessed heads; formulae for dimensions; tables of standard sizes.