Feature:1. Suitable Tread: Bike hubs tube shaft nut is suitable for M12 X 1.5mm tread thru axle, which provide perfect fitment for you.2. Perfect Replacement: thru axle nut is a good replacement accessory for the old or damaged one, which bring you much convenience.3. Easy Installation: Mountain bike tube shaft nut is easy to install, does not need any special tool, which allow you can repairing your at home.4. Compact Size: A total of 1 hubs tube shaft nut, small in size and light in weight, which is easy for you to carry and convenient for transport.5. Aluminum Alloy: Mountain bike thru axle nut made of high quality aluminum alloy, high strength and sturdy, which is durable for a long time use.Specification:Item Type: Mountain Bike Thru Axle NutMaterial: Aluminum AlloyInner Diameter: Approx. 12mm / 0.47inOuter Diameter: Approx. 18.8mm / 0.74inHeight: Approx. 14mm / 0.55in Package List:1 xBike Thru Axle Nut