... Titanium Bolt: 1.Material: Gr1, 2, 3, 4, 5, 7, 9, 12 2.Standard : ASTM ... , DIN, GB/T 3.Parts: bolt and nut 4.Woodencase Pure Titanium Bolt: 1. Material: Gr1, Gr2, ... , 6178~61803.Size: M2~M224. Types of the Head: cheese, hexagon, pan5. Types of the Groove: ... Varieties: titanium cylindrical screw, titanium head screw, titanium pan head screw , titanium square head screw titanium hexagon srew, titanium ...