SANS 1700-2-20-2003 紧固件.第2部分:螺纹.第20子部分:ISO通用公制螺纹.公差.用于与在镀锌前公差位最大的热浸镀锌外螺纹配对的内螺纹的尺寸限值
Fasteners Part 2: Screw threads Section 20: 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 galvaniz
Specifies deviations and limits of sizes for pitch and crest diameters for ISO general purpose metric internal screw threads conforming to SANS 1700-2-3/ISO 262 having basic profile according to SANS 1700-2-1/ISO 68-1.