McKinney TA2731-4-1/2x4 Full Mortise Standard Weight Concealed Bearing Hinge, Two Knuckle, 4-1/2" x 4", Square Corner

The McKinney TA2731 is a full mortise, standard weight hinge built for reliable performance on medium-frequency doors in commercial and institutional settings. Featuring a two-knuckle concealed bearing design, this hinge delivers smooth, quiet operation while keeping the bearing hidden for a clean appearance. Measuring 4-1/2" x 4" with square corners, it's manufactured from steel and rated for high-frequency service. The concealed bearing construction reduces wear over time, making the TA2731 a dependable choice for hollow metal and wood door applications where durability and consistent swing are essential. It ships with matching fasteners for straightforward installation.

Features

• Full mortise design for standard door and frame preparation.
• Two-knuckle concealed bearing construction for smooth, quiet operation.
• Standard weight build suited for medium- and high-frequency door use.
• 4-1/2" x 4" size with square corners for common commercial openings.
• Steel construction for strength and long service life.
• Includes matching machine and wood screws for installation.

Functional Details

The concealed bearing sits within the knuckle, carrying the load of the door while shielding the bearing from dirt and tampering. This allows the hinge to support consistent, low-friction movement over repeated cycles.