titanium socket head cap screws:DIN912, DIN931, DIN933, DIN985, DIN125, DIN127, DIN9021, DIN6926 Titanium socket head cap screws : Titanium and Titanium alloy specifications: 1)Common Ground a, Bolt sizes:M2-M22 ... are a main manufacturer specializing in titanium products for many years.Titanium bars, tube and sheets, titanium fasteners, .titanium nuts, bolts, washers, machine screws, rivets ...