Description

McKinney® TA786 4.5″x4.5″ Heavy Concealed Bearing Hinge

The McKinney® TA786 4.5″x4.5″ Heavy Concealed Bearing Hinge delivers reliable performance for high-frequency and extra-heavy doors. Made from durable steel with a .180 heavy-weight gauge, this three-knuckle hinge is ideal for schools, hospitals, and other public buildings where doors face constant use and heavy traffic.

Because it features concealed anti-friction bearings at both joints, the hinge reduces wear and provides smooth, long-lasting operation. In addition, the full mortise three-knuckle design ensures stability and strength, while its square corners and template hole pattern make installation simple and accurate. Furthermore, it meets ANSI/BHMA A156.1 standards, carries a UL 3-hour fire rating, and complies with NFPA 80 requirements for fire-rated openings.

Key Features:

• Size: 4-1/2″ x 4-1/2″
• Material: Steel
• Weight: Heavy Weight (.180 gauge)
• Design: Full Mortise, 3-Knuckle
• Corner Type: Square
• Handing: Non-handed
• Bearing Type: Concealed Bearing (anti-friction at both joints)
• Template hole pattern for easy installation
• Meets ANSI/BHMA A156.1 Heavy Weight Standards
• ANSI Cross Reference: A8111
• UL Listed – 3 Hour Fire Rating
• NFPA 80 Compliant
• Packed with wood and metal screws

Benefits:

• Supports high-frequency and extra-heavy doors
• Reduces friction and wear with concealed anti-friction bearings
• Ensures smooth, quiet, and long-lasting door operation
• Simplifies installation with included screws and template hole pattern
• Provides fire safety and code compliance for heavy-duty commercial doors

Applications:

The McKinney® TA786 – 4.5″ x 4.5″ Heavy Concealed Bearing Hinge is perfect for heavy wood or metal doors in schools, hospitals, government facilities, and other commercial buildings. Whenever doors face constant use or extra-heavy loads, this heavy-duty three-knuckle hinge delivers dependable performance and durability.