DS EN 2264:1996 Aerospace Series - Nuts, Anchor, Self-Locking, Floating, Two Lug, Incremental Counterbore, In Alloy Steel, Cadmium Plated, Mos[2] Lubricated - Classification: 900 Mpa (At Ambient Temperature)/235 Degrees C Defines the characteristics of self-locking, floating, two lug anchor nuts, with incremental counterbore, in alloy steel, cadmium plated, MoS[2] lubricated.