... size:m4-m22 bolt with high quality and competitive price Titanium products includes bolts,screws, nuts, shafts , shaft liners ... , flange, gear wheel, sprocket wheel. Titanium and Titanium alloy specifications: 1Common Ground a, Bolt sizes:M4-M22* ... :Gr2,Gr5 2Difference: a, Titanium for the chemical aspects,PCBequipment,electrodes. b, Titanium alloy used in Bicycle,Motorcycles,Electric ...