Aerospace series - Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated - Classification: 1250 MPa (at ambient temperature)/650 °C; German and English version EN 3444:2006
航空航天系列.钝化耐高温镍基合金制中长螺纹紧公差标准杆大六角头螺栓.等级:1250MPa(环境温度)/650℃;德语和英语版本EN 3444:2006