Subscribe to be notified about products, launches, special offers and news.


Select the account type that best suits your needs.
Contractors
Trade Professionals
Large Corporate
General Business
Military / Government
Institutional
Hospitals
Behavioral Health
K-12 Higher Learning
GSA Contract
Already have an account? Sign in
The McKinney T4A3786-4-1/2x4-US26D-CC8 is an electrified full mortise heavy weight bearing hinge engineered to transfer power from the frame to the door for electrified locks, exit devices, and monitoring hardware. Built with a five knuckle design and heavy weight bearings, it delivers dependable performance on high-frequency and high-traffic openings. This model measures 4-1/2" x 4", features square corners, and includes eight wires with a concealed circuit for a clean, protected power transfer. Finished in 626 Satin Chrome, it pairs durability with a professional appearance suitable for commercial and institutional door applications.
Features
Functional Details
The concealed circuit routes the electrical wires through the hinge barrel and knuckles, transferring power from the frame side to the door side without exposing the wiring. This allows electrified locksets, exit devices, and access control components to receive constant power while maintaining a concealed and tamper-resistant connection.
| Manufacturer | McKinney |
|---|---|
| SKU | T4A3786 |
| Grade | Heavy Weight |
| Origin | Made in USA |
| Unit of Measure | Each |
| Hinge Type | Full Mortise, Electrified |
| Knuckle Configuration | Five Knuckle |
| Corner Type | Square Corner |
| Finish | 626 Satin Chrome (US26D) |
| BAA Qualified | Yes |
| Limited Warranty | Yes |
| Size | 4-1/2" x 4" |
|---|---|
| Bearing Type | Heavy Weight Bearing |
| Number of Knuckles | 5 |
| Number of Wires | 8 |
| Circuit Type | Concealed Circuit |
| Base Material | Steel |
| Gauge | 0.180" |
| Hole Pattern | Standard Template |
| Corner Radius | Square |
| Recommended Use | High-frequency / heavy doors |
SKU:
Your Price
/ea

