DS EN 3653:2010 Aerospace Series - Nuts, Anchor, Self-Locking, Floating, Self-Aligning, One Lug, In Steel, Cadmium Plated, Mos[2] Lubricated - Classification: 900 Mpa (At Ambient Temperature)/235 Degrees C Defines the characteristics of one lug, floating, self-aligning anchor nuts with a self-locking feature achieved by forming the upper portion out of round, in steel, cadmium plated, MoS[2] lubricated.