Naiyafly 5Pcs/Pack Bike Chainring Wheel Screw Crank Single/Double/Triple Disc Bolt

Description: 1. The surface of the product is colored by PVC color electroplating process to form a plating layer on the surface to make the color more vivid 2. The product is made of steel and the hardness can reach 10.9 level 3. The screw is processed by an automatic thread rolling machine. 4. The thread is dense and strong and the knob force is even. 5. New brand and high quality. Specification: Material: Steel Color: Electroplating Color Size: Step 2.4mm Thread M8 Net Weight: Type C: 4 Grams Type B 4.9 Grams Type A 7.6 Grams For： Type A is used less only a few special bicycles are Used. Type B is usually used for two-piece disc locking on mountain bikes. Type C is usually used for single-piece chainring Package include: 5Pcs*Chainring Wheel Screw Crank