McKinney T4A3786-4-1/2x4 Full Mortise Heavy Weight Five Knuckle Hinge

The McKinney T4A3786 is a full mortise, heavy weight, five knuckle hinge built for high-traffic and high-frequency commercial openings. Measuring 4-1/2 inches by 4 inches, it features concealed ball bearings that keep doors swinging smoothly under demanding conditions while reducing wear over time. Constructed to McKinney's proven durability standards, this hinge is a dependable choice for medium to heavy doors in offices, schools, hospitals, and other institutional settings. Its five knuckle design provides balanced load distribution and a clean, professional appearance. With a non-removable pin option available on many templates, the T4A3786 delivers the strength and longevity specifiers expect from McKinney hardware.

Features

• Full mortise design mounts into a prepared door and frame for a flush, concealed fit.
• Heavy weight construction handles heavy doors and demanding cycle requirements.
• Five knuckle configuration distributes load evenly for smooth operation.
• Concealed ball bearings reduce friction and extend service life.
• 4-1/2 inch by 4 inch dimensions suit a wide range of standard commercial openings.
• Manufactured by McKinney, a trusted name in commercial hinge hardware.

Functional Details

The concealed ball bearing design supports consistent door movement and load handling, making it well suited for openings that see frequent daily use. The bearings carry the weight of the door and minimize binding over thousands of cycles.

• Full mortise, ball bearing hinge for heavy weight, high frequency applications.
• Recommended for medium and heavy weight doors.