DS EN 3299:2007 Aerospace Series - Shaft-Nuts And Threaded Rings, Self-Locking, Right- Or Left-Hand Mj Threads, In Heat Resisting Steel Fe-Pa2601 (A286), Silver Plated - Technical Specification Defines the characteristics, qualification and acceptance requirements for self-locking shaft-nuts and threaded rings, with right- or left-hand MJ threads, in FE-PA2601, silver-plated, for aerospace a