Ferrule Size: 6mm x 4.5mm / 0.24" x 0.18"(OD H). Instruction: This brass compression kit can be connected to copper, brass, aluminum, or plastic tubing. No flaring tool is required for assembly. Fit Tube OD: 4mm / 0.16".
12 Pcs Axle Nuts & Safety Washers for Safe Riding. Generally, M 10 nuts are suitable for the front and rear axles of mountain bikes, while M 8 nuts are for lady's bikes as the front axle. 4 pieces of bike axle washers (approx. ).
12 Pcs Bike Axle Nut and Safety Washer Kit - 3 Sizes Bicycle Hub Flanged Hardware Nuts Steel Flange Nuts Retaining Bicycle Hub Parts for Front and Rear Wheels.