McKinney T4A3786-4-1/2x4-1/2-US26D-CC4 Electrified Full Mortise Heavy Weight Bearing Hinge, Five Knuckle, 4-1/2" x 4-1/2", [4] Wires With Concealed Circuit, Square Corner, 626 Satin Chrome Finish

The McKinney T4A3786-4-1/2x4-1/2-US26D-CC4 is an electrified full mortise heavy weight bearing hinge built for high-traffic openings that require power transfer to the door. Its five-knuckle design carries four concealed wires through the barrel, allowing electrified locks, exit devices, and monitoring accessories to operate without exposed cabling. Measuring 4-1/2" x 4-1/2" with square corners, this hinge combines a durable ball bearing action with a clean satin chrome (US26D/626) finish. Engineered for commercial durability, it delivers dependable performance on heavy doors while keeping the electrical circuit hidden for a professional, tamper-resistant installation.

Features

• Electrified full mortise hinge with four wires routed through a concealed circuit for hidden power transfer.
• Heavy weight ball bearing construction supports high-frequency, high-load door applications.
• Five-knuckle design provides smooth, stable operation and long service life.
• Standard 4-1/2" x 4-1/2" dimensions fit common commercial door and frame preparations.
• Square corner template for use with typical mortised door and frame conditions.
• Satin chrome (US26D/626) finish offers a durable, professional appearance.

Functional Details

The concealed circuit routes electrical wiring through the hinge knuckle, transferring power from the frame to the door while keeping conductors hidden from view. This allows connection to electrified locking hardware and access control devices without surface-mounted wiring.

• Four wires with concealed circuit for electrified power transfer.
• Full mortise mounting to both door and frame.