Features: These bikes bolts are make of quality steel, they provide a practical solution for your bikes cranksets and bottom brackets. Keep your bikes safe from water and sand with these water proof bikes bolts. Their designs ensures the durability of your bikes part. Designs for cycling enthusiasts, repair technicians, and outdoor lover, these bicycles bolts are perfect for various biking activity. Enjoy worry frees biking on any terrain with these firm bikes bolts. They offer stability and reliability for your bikes important part. With pack of 20 easy to install crank screws, ensures you have everything you need for a practical and hassles frees upgraded to your biking gear. Specifications: Materials: Steel+Plastic Color: As The Picture Shows Package Weight: approx.285g Size: approx.26x20mm/1.02x0.78in Thread Diameter: 8mm/0.31in Package Includes: 20Pcs Crankset Bolts note: Please allow 1-3mm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!