Description: High performance, corrosion-resistant,light weight,high strength and durability bolts and nuts Silver-C usually fits mountani bike single crankset Style description: Type B is usually used for locking two-piece discs on bicycles. Type C is usually used to lock a single chainring. If you remove the cap, you can directly lock the smallest disk in the mountain. Specification: Material: Steel C Size: Heigh:8.5mm/0.33 inch ; Outer Diameter: 7mm/0.28 inch; Nut Height: 6.5mm/0.25 inch; Outer Diameter: 10mm/0.39 inch Package Includes: 5 pieces Bike Chainring Bolts 1. Crafted from high-strength stainless steel, these chainring bolts offer excellent durability and corrosion resistance, making them suitable for frequent cycling in varied weather conditions. 2. Lightweight construction helps reduce overall bike weight while maintaining secure crankset attachment, ideal for riders seeking performance and reliability. 3. Designed for easy installation, these bolts are compatible with single chainring and two-piece disc configurations on mountain bikes, fitting most standard cranksets. 4. The silver finish provides a clean, sleek look that blends seamlessly with most bicycle styles, enhancing both appearance and function. 5. Suitable for cyclists looking to replace or upgrade crank bolts, this set of 5 pairs is perfect for home bike maintenance, repairs, or as spares for trail rides.