McKinney T4A3786-5x4-1/2-US26D-INTERIM Full Mortise Heavy Weight Bearing Hinge, Five Knuckle, 5" x 4-1/2", Interim Unequal Leaf, Square Corner, 626 Satin Chrome Finish

The McKinney T4A3786-5x4-1/2-US26D-INTERIM is a full mortise, heavy weight bearing hinge built for high-frequency and high-traffic openings where reliable performance is essential. This five knuckle hinge measures 5" x 4-1/2" with square corners and features an interim unequal leaf design, allowing for wider door and frame conditions where standard equal leaves fall short. Finished in 626 Satin Chrome (US26D), it delivers a clean, durable appearance suited to commercial environments. The heavy weight bearing construction supports substantial door loads and resists wear, making this hinge a dependable choice for institutional, healthcare, and commercial installations that demand long-term durability.

Features

• Full mortise mounting for a concealed, flush installation on standard prepped doors and frames.
• Heavy weight bearing construction handles high-frequency traffic and heavier door loads.
• Five knuckle design provides balanced strength and smooth operation.
• Interim unequal leaf configuration accommodates wider or non-standard door and frame conditions.
• Square corner style matches common commercial door preparations.
• 626 Satin Chrome finish offers a refined, corrosion-resistant appearance.

Functional Details

The heavy weight bearing hinge uses ball bearings to reduce friction between the knuckles, allowing the door to swing smoothly under load while extending the life of the hinge. This construction is intended for doors subject to high use and heavier weights.

• Recommended for high-frequency and/or heavy doors.
• Ball bearing construction ensures smooth, quiet operation.