BS EN 3038:1997
钝化处理的耐热耐蚀钢短螺纹紧公差标准螺杆斜十字槽盘头螺钉.等级:1100 MPa(室温)/425℃
Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/425 °C