EN 3759:1996
航空和航天系列.耐蚀耐高温钢制钝化螺纹接近根部带翼型十字槽平头螺钉.等级-1100MPa(环境温度)/425℃
Aerospace series - Screws, pan head, offset cruciform recess, threaded to head, in heat and corrosion resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/425 °C