The KROM-HBB99C26D454ECT8strong> is a 5 knuckle, heavy duty, 4.5" X 4", 8 wire 28 gauge (ECT8), satin chrome (C26D), full mortise power transfer ball bearing hinge. It conforms to ANSI/BHMA standards and is UL listed. Molex connectors (unassembled) and wood and machine scews are included. 1 year warranty.