Material: 6AL/4V(TC4)Titanium Alloy,Grade 5 Flange Head Diameter:11mm/0.433'';Flange Head Height:6mm/0.24'' Use Wrench Size: 8 mm/0.31'';Weight:7.8g/piece Thread Diameter : 6mm/ 1/4";Thread Full Length 60mm,Thread Part Length :25mm Package Included: 4 x Titanium M6x60mm Bolts Products can be used for bicycles, motorcycles, cars and so on