Titanium stud bolt Standard:DIN835,DIN938,DIN939,DIN940,DIN975 Material:Pure titanium,Titanium alloy Grade:Gr1,Gr2,Gr5(Ti6al4v),Gr7,Gr9 Specification:M3-M30*L/As you required Technique:Rolled,NC machine,Milling machining Surface Treatment: Polishing,Anodizing, Nitriding Color:Ti nature,Gold,Blue,Green,Purple,Black Application:Airplane,Ship,Bicycle,Motorcycle,Auto,Medical,Chemical,Sports,Weapon,etc. http://www.xinliantitanium.com