DIN EN 4075:2009
航空航天系列 钝化的耐腐蚀钢制螺纹至头部的斜十字槽盘头螺钉 等级:490MPa(室温)/425℃
Aerospace series - Screws, pan head, offset cruciform recess, threaded to head, in corrosion resisting steel, passivated - Classification: 490 MPa (at ambient temperature) / 425 °C; German and English version EN 4075:2008