Aerospace series - Bolts, double hexagon head with lockwire holes, relieved shank, long thread, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated - Classification: 1550 MPa (at ambient temperature)/650 °C; German and English version EN 4321:2004
航空航天系列.镀银耐高温镍基合金NI-PH2601(Inconel 718)制长螺纹松柄双六角头锁线孔螺栓.等级:1550MPa(环境温度)/650℃;德语和英语版本EN 4321:2004