... 4.Certification:ISO9001:2000 Hot-selling and best price screw A word trough screw and bolts Titanium and Titanium alloy specifications ... : 1)Common Ground a, Bolt sizes:M3-M22*length b, Nut sizes:M3-M30 c, Standard:GB,DIN ... ,Electric Vehicles,Medical,Aircarft,Weapons etc. About factory: We are a main manufacturer specializing in titanium products for many years.Titanium ...