Electrified Door Hinge with Ball Bearing, Stanley Security, Mfr#: CEFBB179-66 4-1/2X4-1/2 26D$226.99+
Schlage Electronics Schlage Electronics AD and CO Series Parts, Stanley Security, Mfr#: RDCEFBB179-54 4-1/2X4-1/226D$125.99+