General purpose bolts and screws — Metric series — Radii under the head
通用螺栓和螺钉——公制系列——头下半径
发布日期:
2000-03-02
本国际标准规定了封头下半径的尺寸和公制螺纹的过渡直径
系列通用螺栓和螺钉。
This International Standard specifies the sizes of the radii under the head and the transition diameters of metric
series general purpose bolts and screws.