DIN EN 4119-2006 航空航天系列.螺纹上镀银的耐热钢FE-PA2601 (A286)制深沉头孔自锁紧十二角螺母.等级:1100 MPa(室温)/650 °C
Aerospace series - Nuts, bihexagonal, self-locking, deep counterbore, in heat resisting steel FE-PA2601 (A286), silver plated on thread - Classification: 1100 MPa (at ambient temperature) / 650 °C; German and English version EN 4119:2004