标准摘要
[中文适用范围]： 广泛，可指导各类公制螺纹零件的设计、制造及质量控制流程，为相关产业提供统一的技术语言和规范指引。 [外文原描述]： This document specifies a tolerance system for ISO general purpose metric screw threads (M) conforming to ISO 261 having basic and design profiles in accordance with ISO 68-1.
英文名称ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data