Features 1、Premium Material: High strength titanium alloy material, fine workmanship, high hardness, not easy to deform. 2、Treated: Anodic oxidation treatment, bright color, corrosion resistance, not easy to fade over time. 3、Compact and Portable: Compact in shape, light and portable, does not take up space, and can be placed anywhere. 4、Product Application: Cycling crank bolt is suitable for square hole central shaft, crankset, crank waterproof fixed screw. 5、Product Specifications: Cycling crank screws specifications is M8x15mm, the optional colors are colorful, gold, black. Specification Item Type: Cycling Square Hole Center Shaft Waterproof Screw Product Material: Titanium Alloy Product Specifications: M8x15mm Weight: Approx. 50g/1.8oz Product Application: Square Hole Central Shaft, Crankset, Crank Water proof Fixed Screw Package List 2 x Screw 2 x Washer