DS EN 3712:2007 Aerospace Series - Nuts, Anchor, Self-Locking, One Lug, Fixed, Reduced Series, With Counterbore, In Steel, Cadmium Plated, Mos[2] Lubricated - Classification: 1100 Mpa (At Ambient Temperature)/235 Degrees C Defines characteristics for one lug, reduced series, counterbored, fixed anchor nuts, with a self-locking feature achieved by forming the upper portion out-of-round, in steel, cadmium plated, MoS[2] l