M8x10 15 20 25 30 35 40 50 60 70mm Titanium Bolts Plum Head Truss Screw T40 Torx. ● Size: M8x10 15 20 25 30 35 40 50 60 70mm. ● Wrench Size: Use T40 inner plum wrench. ● 【High Quality 】: Adopt High Standard Tc4 Titanium Alloy Raw Material,Titanium Screws Are More Resistant to Acid and Corrosion than Other Materials.