M3 and M4 Hex Flat And Button Head RC Screws Kit Tool Set with M3-M4 Bolt Washer, Lock Nut, Shell Clip, E-Clip, Pins and O-Circle   Hardware Fastener RC Car parts For 1/8 1/10 Scale RC Cars Crawler Truck. Material: High Quality Metal, High Hardness and Durable. Store in different grids in a plastic case for easy Organization and usage. Package List..