Hager BB1279 5" x 4-1/2" Ball Bearing Full Mortise Hinge

The Hager BB11279 5" x 4.5" is a premium, standard weight ball bearing hinge designed for medium-weight doors requiring a clean, professional look and smooth operation. Standing at a specialized 5-inch height, this hinge provides superior vertical support and weight distribution compared to standard 4.5" models. Manufactured from high-strength steel with a durable plated finish, it is the industry standard for commercial offices, hotels, and institutional buildings.

Professional Smooth-Action Performance

Equipped with two ball bearings, the BB1279 ensures nearly frictionless door movement, preventing the "binding" or squeaking often associated with plain bearing hinges. This 5-knuckle commercial hinge is engineered for doors requiring low-frequency service, providing a reliable and quiet swing for years to come. The non-rising removable pin features a button tip and plug, ensuring the pin stays securely in place during operation while remaining accessible for maintenance.

Heavy-Duty Commercial Specifications

This hinge features a robust .146 gauge thickness, making it sturdier than standard residential hardware. It is specifically designed for 1-3/4" thick doors and meets rigorous ANSI A8112 standards for quality and performance. Whether you are outfitting a new commercial facility or replacing worn hardware in a high-traffic hallway, the Hager BB1279 offers the industrial reliability your project demands.

Technical Specifications

Installation and Hardware

Every Hager BB1279 is furnished with a complete set of high-quality fasteners to ensure a permanent and professional mount:

• All Machine Screws: 1/2" 12-24 FPHM (Standard for metal frames and doors)
  
• All Wood Screws: 1-1/4" x 12 FPHW (Standard for wood door and frame applications)

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