Aerospace series - Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated, with aluminium pigmented coating, Classification: 1 550 MPa (at ambient temperature)/315 °C; German and English version EN 4498:2005
航空航天系列.钝化耐热镍基合金制带铝着色涂层的中长螺纹紧公差标准杆大六角头螺栓.等级:1550MPa(环境温度)/315℃;德语和英语版本EN 4498:2005