Hager Hinge AB70041226D Full Mortise Three Knuckle Hinge

Product Description

The HAGER HINGE AB70041226D is a full mortise, standard weight, three knuckle door hinge with a concealed anti-friction bearing and a satin chrome finish. Designed for commercial and residential door applications, this hinge measures 4.5 inches by 4.5 inches and is sold individually. The concealed anti-friction bearing reduces friction during door operation, supporting smooth, consistent swing over the life of the installation. The three knuckle configuration provides a clean, streamlined profile suited to modern and traditional door frames alike. Licensed door hardware installers and commercial finish carpenters are the primary installers of this product.

This hinge is intended for full mortise door installations where both the door and the frame are routed to accept the hinge leaf. It is appropriate for interior and exterior door applications in residential, light commercial, and institutional settings. The satin chrome finish coordinates with a wide range of door hardware finishes and is commonly specified in office, educational, and multi-family residential projects. Each unit ships as a single hinge assembly.

Key Features

• Full mortise design — both leaves seat flush into routed door and frame
• Concealed anti-friction bearing for smooth, low-resistance door swing
• Three knuckle configuration provides a low-profile, clean appearance
• Standard weight construction suitable for typical residential and light commercial doors
• 4.5 inches x 4.5 inches leaf size fits common door thicknesses and widths
• Satin chrome finish for a brushed, understated aesthetic

Compatibility

Designed as an OEM-style full mortise hinge replacement suitable for standard residential and light commercial door frames accepting a 4.5 inches x 4.5 inches mortise hinge leaf.

Installation Notes

Installation requires mortising both the door edge and the door frame to accept each hinge leaf flush. Power down any access control or electric strike hardware associated with the door before beginning work. Use a sharp chisel or router with a hinge template to achieve a clean, properly dimensioned mortise. Follow applicable local building codes and manufacturer fastener requirements for door hardware installation.