DIN EN 4161 E:2019-03
航空航天系列 镀镉合金钢长螺纹粗公差标称柄偏头十字形凹槽平头螺钉 等级:1100 MPa (室温) /235℃(草案)
Aerospace series - Screws, pan head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1100 MPa (at ambient temperature)/235 °C