McKinney TA786-4-1/2x4-1/2-US26D-QC8 Electrified Full Mortise Heavy Weight Concealed Bearing Hinge, Three Knuckle, 4-1/2" x 4-1/2", [8] Wires With Quick Connect, Square Corner, 626 Satin Chrome Finish

The McKinney TA786-4-1/2x4-1/2-US26D-QC8 is an electrified full mortise hinge built for heavy weight, high-traffic openings that require power transfer through the door. This three knuckle, concealed bearing hinge measures 4-1/2" x 4-1/2" and carries eight wires with a Quick Connect connector, simplifying installation for access control, electric locks, and monitoring devices. Finished in 626 Satin Chrome, it delivers durable performance and a clean appearance on commercial doors. The square corner design suits standard mortised frame preparations, while the concealed bearing construction supports smooth, long-lasting operation under demanding conditions where reliable electrical continuity is essential.

Features

• Electrified hinge transfers power through the door for access control and electric locking hardware.
• Eight wires with Quick Connect for faster, tool-friendly electrical connections.
• Heavy weight construction rated for high-frequency and high-traffic openings.
• Concealed bearing design provides smooth, quiet operation and long service life.
• Three knuckle configuration with a square corner profile.
• 4-1/2" x 4-1/2" size fits standard mortise frame preparations.
• 626 Satin Chrome finish offers a durable, professional appearance.

Functional Details

The TA786 routes concealed wiring through the hinge barrel, allowing electricity to pass from the frame to the door leaf without exposed cabling. The Quick Connect terminals let installers join the eight wires quickly while maintaining consistent electrical continuity for connected devices.