●Bicycle crank screw with screw lock (screw adhesive): protects against vibration loosening as well as against unwanted screw loosening and provides protection against corrosion ●Bottom bracket screw for Bosch e-bike drives and suitable for Brose e-bike drives ●For crank systems with ISIS bottom bracket with M15 thread ●With plastic seal on the outside (no separate crank cap required) ●Not an original Bosch / Brose replacement part