DS EN 4458:2005 Aerospace Series - Studs, Mj Threads, In Titanium Alloy Ti-P64001, Mos[2] Coated, With Serrated Locking Ring In Corrosion Resisting Steel - Strength Class: 1100 Mpa (At Ambient Temperature) - Technical Specification Defines the characteristics, qualification and acceptance requirements for studs with MJ threads in TI-P64001, MoS[2] coated, with serrated locking ring in corrosion resisting steel.