Description: 【Material】This bicycle crank screw is made of high quality aluminum alloy, lightweight, durable, and sturdy. 【Fine Workmanship】Standard threaded pattern, will not cause different thread thickness, excellent replacement part. 【Function】This crank bolt is to fix the crank, thereby prolonging crank service life and improving the safety of riding. 【Easy to install】This crank screw cover is small in size, light in weight, and easy to remove and use. 【Applications】This bike crankset bolt is suitable for mountain bikes, road bikes, folding bikes, etc. It is a great accessory for riding enthusiasts. Specification: Material: Aluminum Alloy Size Chart: Outer Diameter: 2.7cm/1.06inch Thread Diameter: 2.2cm/0.87inch Height: 6mm/0.24inch Package Includes: 1 Bike Crankset Screw Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3mm differences due to manual measurement.