This inswinging door kit is constructed of zinc alloy (cast Zamak) and all components come in a chrome plated finish. These are the Sentry Supply components included with this kit: One #650-6602 slide latch, one #650-7350 door insert (top), one #650-7351 door insert (bottom), one #650-6482 strike and keeper, one #650-6626 hook and bumper, one #650-6557 bottom pivot hinge with 1/2 in. pintle, one #650-7055 pivot hinge pin, one #650-6551 top pivot hinge, with T-27 Torx security fasteners for installation of all components. These fasteners feature tamper-resistant 6-lobe security drives with center pins.