BS 949-3-1993 丝锥.管螺纹丝锥规格

标准号：BS 949-3-1993
中文标准名称：丝锥.管螺纹丝锥规格
英文标准名称：Screwing taps - Specification for pipe thread taps
标准类型：J41
发布日期：1993/3/15 12:00:00
实施日期：1993/3/15 12:00:00
中国标准分类号：J41
国际标准分类号：25.100.50
适用范围：This Part of BS 949 specifies dimensions and tolerances for screwing taps for the following thread series: a) parallel internal pipe threads for use where pressure-tight joints are not required to be made on the threads, i.e. G series threads, in accordance with BS 2779 : 1986; b) parallel internal pipe threads for use with taper external pipe threads in making pressure-tight joints on the threads, i.e. Rp series threads, in accordance with BS 21 : 1985; c) taper internal pipe threads for use with taper external pipe threads in making pressure-tight joints on the threads, i.e. Rc series threads, in accordance with BS 21 : 1985.