BS EN 4074:2009
航空航天系列.铝IVD涂层钛合金中长螺纹紧公差标准柄六瓣凹槽盘头螺栓.分类:1100 MPa(环境温度)/425℃
Aerospace series - Screws, pan head, six lobe recess, coarse tolerance normal shank, medium length thread, in titanium alloy, aluminium IVD coated - Classification: 1100 MPa (at ambient temperature)/425℃