Hager BB1279 4-1/2X4-1/2 26D ETW4 Standard Weight Hinge

Hager BB1279 4-1/2X4-1/2 26D ETW4 Hinge is a full mortise ball bearing hinge designed for durability and optimal performance in medium frequency service applications. Measuring 4-1/2" by 4-1/2", this standard weight steel hinge features a satin chrome finish, ensuring both aesthetic appeal and corrosion resistance. With five knuckles and four wires, it delivers reliable functionality for hollow metal or wood composite doors within hollow metal frames. Manufactured in accordance with ANSI/BHMA A156.1 standards, this hinge is suitable for commercial installations, capable of supporting doors with a fire rating of up to three hours. The non-removable pin adds an extra layer of security, while the full mortise design ensures a sleek look that integrates seamlessly into your door and frame. For installation, consider the necessary dimensions such as door thickness, backset, and required clearance to ensure compatibility. Hager hinges are renowned for their quality and wide variety, making them a trusted choice among building professionals and knowledgeable homeowners alike. With a limited one-year warranty, you can feel confident in your investment with the Hager BB1279 hinge, a perfect blend of strength, style, and reliability.

HINGE, STANDARD WEIGHT

Full Mortise Ball Bearing Hinge, Standard Weight, 4-1/2" by 4-1/2", Steel, 5 Knuckle, 4-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