Caliper bolt. Left. Rear. Right. A Bolt used to mount / lock the disc brake Caliper to the disc brake Caliper guide Pin. 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. Exc.Heavy Duty Brakes. Heavy Duty Brakes. mount. support hardware kit. /SCREW, BRAKE CLPR Guide. Disc Brake Slide.