Aerospace series - Nuts, bihexagonal, self-locking, deep counterbored, in heat resisting steel FE-PA92HT (A286), silver plated - Classification: 1100 MPa (at ambient temperature)/650 °C; German version EN 2909:1995
航空航天系列.镀银耐高温钢FE-PA92HT(A286)制深沉头自锁双六角螺母.等级:1100MPa(环境温度)/650℃;德文版EN 2909:1995