ACTION M8 ALLEN CRANK BOLT With Seal

The Action M8 Allen W/Seal Crank Bolt is a specialized capless bottom bracket hardware piece designed to secure standard square-taper bicycle crank arms. Featuring a built-in wider flanged lip and an integrated black rubber seal, it completely eliminates the need for separate plastic dust caps or crank covers while providing a clean, low-profile look that keeps dirt and moisture away from the spindle threads.