BS 93-2008 英国协会(B.A.)螺纹.要求

标准号：BS 93-2008
中文标准名称：英国协会(B.A.)螺纹.要求
英文标准名称：British Association (B.A.) screw threads - Requirements
标准类型：J04
发布日期：2008/9/30 12:00:00
实施日期：2008/9/30 12:00:00
中国标准分类号：J04
国际标准分类号：21.040.30
引用标准：BS 919-2;BS 6528-1984
适用范围：This British Standard specifies limits of sizes, and tolerances, for singlestart parallel screw threads of British Association (B.A.) form. It is notapplicable to screw threads associated with interference fits, such asthose on the “metal ends” of studs and in the corresponding tappedholes.This British Standard specifies the following:a) basic sizes for B.A. threads, sizes 0 B.A. to 16 B.A.;b) limits of size, and tolerances, for close class and normal classexternal threads of sizes 0 B.A. to 10 B.A.;c) limits of size, and tolerances, for normal class external threads ofsizes 11 B.A. to 16 B.A.;d) limits of size, and tolerances, for a single class of internal threadsof sizes 0 B.A. to 16 B.A.