McKinney T4A3781-5" US26D Full Surface Heavy Weight Bearing Hinge, Five Knuckle, 5" Height, Square Corner, Reversible 626 Satin Chrome Finish

The McKinney T4A3781 is a full surface, heavy weight bearing hinge engineered for high-frequency and high-abuse door openings where durability matters most. Built with a five knuckle design and antifriction bearings, it supports demanding commercial applications while ensuring smooth, reliable swing over the life of the door. This model measures 5" in height, features square corners, and comes in a US26D (626) satin chrome finish. Its reversible construction allows for flexible left- or right-hand installation, and the full surface mounting makes it ideal for retrofits and openings where mortising is impractical. Trusted in institutional, healthcare, and educational settings, this hinge delivers dependable long-term performance.

Features

• Five knuckle, full surface design for heavy weight and high-frequency doors.
• Antifriction bearings provide smooth operation and extended service life.
• Reversible construction supports both left- and right-hand door installations.
• Square corner profile with a 5" height for versatile commercial fitment.
• US26D (626) satin chrome finish offers a clean, durable appearance.
• Surface mounting eliminates the need for door and frame mortising.