Hager BB1279 4-1/2X4-1/2 26D ETW8 Standard Weight Hinge

Hager BB1279 4-1/2X4-1/2 26D ETW8 Hinge offers a robust solution for your door hardware needs with its full mortise ball bearing design. Measuring 4-1/2 inches by 4-1/2 inches, this standard-weight hinge is crafted from durable steel and features a satin chrome finish that complements various architectural styles. With five knuckles and eight wires, the BB1279 ensures smooth operation and longevity, making it ideal for use on hollow metal or wood composite doors fitted with hollow metal frames. Designed to meet the demands of medium frequency service, this hinge adheres to ANSI/BHMA A156.1 standards, guaranteeing reliability in commercial settings. It is engineered for applications requiring a fire rating of up to three hours, providing peace of mind in safety compliance. The hinge's non-removable pin type enhances security, making it a smart choice for high-traffic areas. Installation is straightforward, and with a limited one-year warranty, the Hager BB1279 delivers both quality and assurance. Whether outfitting a new build or upgrading existing hardware, this hinge stands out for its versatility and performance, ensuring your doors function seamlessly while maintaining aesthetic appeal.

HINGE, STANDARD WEIGHT

Full Mortise Ball Bearing Hinge, Standard Weight, 4-1/2" by 4-1/2", Steel, 5 Knuckle, 8-Wires, Satin Chrome Finish

Ball bearing standard weight steel base hinge for use on hollow metal or wood composite doors with hollow metal frames requiring medium frequency service

There are three dimensions to know in order to determine the minimum width of the hinge: door thickness, backset, and clearance required.

Today, the Hager name is synonymous with architectural hinges. In fact, they are the industry’s premiere designer and manufacturer of architectural hinges, with a product line that offers one of the widest varieties of sizes, shapes, and finishes--all of which meet or exceed ANSI standards. 

• Hinges are manufactured in accordance with ANSI/BHMA A156.1. Self-closing hinges and pivots are in accordance with ANSI/BHMA A156.17 using three hinges per opening on a 3’0” x 7’0” x 1-3/4” (914 mm x 2134 mm x 44 mm) door. 
• Round corners are available in 1/4” (6 mm) (standard) or 5/8” (16 mm) radius.
• Full Mortise Both leaves are mortised, one leaf in the door and one leaf in the frame (wood door or hollow metal door with wood frame or hollow metal frame). Example: BB1279, 4-1/2” x 4-1/2” (114 mm x 114 mm), US26D
• Half Mortise One leaf is mortised in the door and the other is surface applied to the frame (hollow metal door with channel iron frame). Example: BB1109, 4-1/2” (114 mm), US26D
• Full Surface Both leaves are applied to the surface, one to the door and the other to the frame (metal core door or hollow metal door with channel iron frame). Example: BB2171, 5” (127 mm), USP
• Half Surface One leaf is mortised in the frame and the other is surface applied to the face of the door (wood door with wood frame or metal core door with hollow metal frame) Example: BB1163, 5” (152 mm), US26D

Resources

• Hager Commercial Hinges Cut Sheet