Резьбы метрические ISO общего назначения. Допуски. Часть 1. Принципы и основные характеристики
Название (англ.):
ISO general purpose metric screw threads; Tolerances; Part 1 : Principles and basic data
Описание (англ.):
Specifies a tolerance system for threads conforming to ISO 261 which refers to the basic profile according to ISO 68; tabulates fundamental deviations, lengths of thread engagement, diameter and pitch diameter tolerances for nut and bolt threads, as well as root contours and recommended tolerance classes.