Left. Mount kit. Right. A pin used with a float style Caliper, which Mounts the Caliper to a Caliper bracket through a Caliper guide pin bolt, allowing the Caliper to slide freely during braking. Disc Brake Caliper Bolt. Incl.Bolts,Boots. Pin. Brake Attachment. bushing. support retainer. Disc Brake Bolt. Disc Brake Guide Pin. Disc Brake Slide Pin.