DIN EN 3012:1995-11
航空航天系列 - 螺母，双六角形，自锁，耐热镍基合金 NI-P101HT（Waspaloy）；分类：1210 MPa（环境温度）/730 °C
Aerospace series - Nuts, bihexagonal, self-locking, in heat resisting nickel base alloy NI-P101HT (Waspaloy); classification: 1210 MPa (at ambient temperature)/730 °C; German version EN 3012:1995