DS EN 3843:2010
DS EN 3843:2010 Aerospace Series - Nuts, Bihexagonal, Self-Locking, With Counterbore, In Heat Resisting Steel, Passivated - Classification: 1100 Mpa (At Ambient Temperature)/650 Degrees C Defines the characteristics of bihexagonal self-locking nuts, with counterbore, in heat resisting steel, passivated.