Резьбы метрические ISO общего назначения. Выбор размеров для винтов, болтов и гаек
Название (англ.):
ISO general purpose metric screw threads; Selected sizes for screws, bolts and nuts
Описание (англ.):
Specifies nominal diameters from 1 mm up to including 39 mm with relation to coarse and fine pitches; these threads are selected from ISO 261 and shall be designated by the letter M; an example of designation is given, too.