美利体育登录入口官网:BS ISO 965-5:1998
ISO普通米制螺纹. 公差.第5部分:与镀锌前公差带位置为H最大尺寸的热浸镀锌外螺纹相匹配的内螺纹的极限尺寸
ISO general purpose metric screw threads - Tolerances - Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing