DIN EN 2924 E:2018-09
航空航天系列 耐热钢镀银左旋螺纹六角平头螺母 高度缩减 对边缩减 等级:600 MPa(在环境温度下)/425 锛烠(草案)
Aerospace series - Nuts, hexagon, plain, reduced height, reduced across flats, in heat resisting steel, silver plated, left hand thread - Classification: 600 MPa (at ambient temperature)/425 °C