标准摘要
[中文适用范围]： 适用于热浸锌公制外螺纹（M6至M68粗牙螺距，以及M72至M100螺距为6的螺纹），符合IS0 262标准，并在热浸锌前按照公差等级6az制造。 [外文原描述]： This document specifies the fundamental deviations and limits of sizes for the pitch and major diameters of the hot-dip galvanized metric external threads (M) conforming to ISO 262 (M6 to M68 with the coarse pitches and M72 to M100 with pitch 6) having basic and design profiles in accordance with ISO 68-1. This document is applicable to the hot-dip galvanized metric external threads undersized to tolerance class 6az before galvanizing to mate with the internal threads made to tolerance position H or G after galvanizing.
英文名称ISO general purpose metric screw threads — Tolerances — Part 4: Limits of sizes for hot-dip galvanized external threads to mate with internal threads made to tolerance position H or G after galvanizing