Aerospace series - Nuts, hexagon, self-locking by plastic ring, normal height, normal across flats, in corrosion resisting steel, passivated - Classification: 900 MPa (at ambient temperature) / 120 °C; German and English version EN 4297:2017
航空航天系列.钝化耐腐蚀钢制标准对边六角塑料环自锁螺母.等级:900 MPa(环境温度)/120℃;德语和英语版本EN 4297:2017