NEN-ISO 3315:2018现行
Assembly tools for screws and nuts - Driving parts for hand-operated square drive socket wrenches - Dimensions and tests
出版：Netherlands Standards
专家解读视频
基本信息
标准编号： NEN-ISO 3315:2018
标准类别：Standard
出版单位：Netherlands Standards
标准页数：0
标准简介
NEN-ISO 3315 is applicable to driving parts of hand-operated square drive socket wrenches. It specifies: a) the overall dimensions; b) the minimum Rockwell hardness value for their driving squares; c)?the method of torque testing; d) the minimum torsional strength values; e) the designation; f) the marking.
