Description
McKinney® T4A3786 5″x4.5″ Heavy Weight Bearing Hinge
The McKinney® T4A3786 5″x4.5″ Heavy Weight Bearing Hinge delivers maximum strength and durability for high-frequency and extra-heavy doors. Built from steel with a .180 gauge thickness, this heavy weight hinge supports demanding applications in schools, hospitals, and other public buildings where heavy traffic is constant.
Because it features an oil-impregnated bearing, the hinge reduces friction and ensures smooth, long-lasting performance. In addition, the five-knuckle full mortise design provides superior stability for heavy wood or metal doors. Furthermore, it meets ANSI/BHMA A156.1 standards, carries a UL 3-hour fire rating, and complies with NFPA 80 requirements. As a result, it offers both performance and code compliance in high-traffic environments.
Key Features:
- Size: 5″ x 4-1/2″
- Material: Steel
- Weight: Heavy Weight (.180 gauge)
- Design: Full Mortise, 5-Knuckle
- Corner Type: Square
- Handing: Non-handed
- Bearing Type: Oil-Impregnated Bearing
- Template hole pattern for precise 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 extra-heavy and high-frequency doors
- Reduces wear with oil-impregnated bearing technology
- Provides long-term durability in heavy traffic areas
- Ensures fire safety and code compliance
- Simplifies installation with included fasteners
Applications:
The McKinney® T4A3786 – 5″ x 4.5″ Heavy Weight Bearing Hinge is ideal for heavy wood or metal doors in schools, hospitals, government facilities, and commercial buildings. Whenever doors face constant use or heavy loads, this hinge delivers dependable heavy-duty performance.













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