1. Sizes:M3-M20 2. Grades: Gr1-Gr12, etc 3. Materials: Pure Titanium and Alloy Titanium 4. Standard: DIN912, DIN7991, etc. Specification of Titanium Bolt:1. Standard: DIN912, DIN7991, etc.2. Sizes:M3-M203. Grades: Gr1-Gr12, etc4. Surface Treatments: Polish, anodized, etc5. Materials: Pure Titanium and Alloy Titanium6. Types: Hex Socket Head Cap Bolt, Countersunk Allen Head Bolt, etc.Features of ...