The crank bolts are made of steel material, strong and durable. With plastic seal outside (no separate crank cap required).
Fit for crank systems with ISIS inner bearing with M8 thread.
Our 8mm Hex fixing screws is easy installation, a good replacement for crankset repair, suitable for any square hole crankset & bottom bracket.
Bicycle crank screw with screw lock (screw adhesive), protects against vibration loosening as well as against unwanted screw loosening and offers protection against corrosion.