AS B108-1952 黑色半圆沉头螺栓，螺母和垫片

标准号：AS B108-1952
中文标准名称：黑色半圆沉头螺栓，螺母和垫片
英文标准名称：Black cup and countersunk bolts, nuts and washers
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
国际标准分类号：21.060.01
适用范围：Establishes dimensions for cup head bolts with square, oval and nibbed shanks, and countersunk headed bolts with square and nibbed shanks for use on steel work and wood work and with Whitworth threads. It includes square and hexagon nuts and a complete range of round and square washers with round and square holes. The range of nominal sizes covered is from 2 in. to 1 in. Requirements are laid down in respect of the lengths of threads and the tolerances on them, and the form of the end of the bolt shank.