Hager IHTAB750 4-1/2x4-1/2 26D 3-Knuckle Institutional Hinge

Hager IHTAB750 4-1/2x4-1/2 26D 3-KNUCKLE INSTITUTIONAL HINGE offers unparalleled durability and performance for commercial applications. This full mortise concealed anti-friction bearing hinge measures 4-1/2" by 4-1/2" and is constructed from high-quality steel, ensuring it can handle the demands of heavy-weight doors or those requiring frequent use. Its three-knuckle design enhances strength and stability, making it an ideal choice for institutional settings, including prisons and hospitals. The hinge features a satin chromium plated finish, adding a sleek, modern look while providing corrosion resistance. It meets ANSI/BHMA A156.1 standards, ensuring reliability and compliance with industry norms, and is fire-rated for up to 3 hours, making it suitable for safety-sensitive environments. Designed for full mortise installation, both leaves are mortised into the door and frame, which allows for a clean appearance and smooth operation. The hinge’s removable pin type simplifies maintenance and adjustments. Ideal for professionals seeking a robust solution, the Hager IHTAB750 is the go-to choice for enhancing door functionality without compromising on aesthetics. With a limited one-year warranty, you can trust in the quality and craftsmanship of Hager commercial hinges.

3-KNUCKLE INSTITUTIONAL HINGE

Full Mortise Concealed Anti-Friction Bearing Hinge, Heavy Weight, 4-1/2" by 4-1/2", Steel, 3 Knuckle, Institutional or Prison Welded Tips, Satin Chromium Plated Finish

Three knuckle ball bearing heavy weight hinge. For use with heavy weight doors or doors requiring high 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