Hager Hinge 1279412P Full Mortise Five Knuckle Hinge 4.5x4.5

Product Description

The HAGER HINGE 1279412P is a full mortise, five knuckle, plain bearing hinge in a prime coat finish. It is a standard weight hinge designed for commercial and residential door installations where a clean, paintable finish is required. The hinge measures 4.5 inches x 4.5 inches and weighs 1 pound, making it suitable for standard door applications. Plain bearing construction provides reliable pivot performance under normal traffic loads. Licensed door hardware installers and finish carpenters are the typical trades that spec and install this unit.

This hinge is used in full mortise door applications where the hinge leaf is recessed into both the door edge and the door frame. The prime coat finish is intended to receive a topcoat of paint, making it a common choice on steel or wood doors in commercial construction, light institutional settings, and residential projects where a custom paint match is needed. Sold individually as a single unit.

Key Features

• Full mortise design — leaf recesses flush into door edge and frame
• Five knuckle construction for strength and clean visual profile
• Plain bearing pivot suitable for standard traffic frequency
• Prime coat finish accepts field-applied paint for color-matched installations
• Standard weight classification appropriate for typical interior and exterior doors
• Sold per each unit with a case quantity of 48

Compatibility

Designed as a full mortise replacement or new-installation hinge for standard door preparations requiring a 4.5 inch x 4.5 inch hinge leaf footprint with plain bearing construction.

Installation Notes

Installation is performed by a door hardware installer or finish carpenter using a chisel or router to mortise the hinge pocket to the correct depth on both the door edge and the door jamb. Confirm door weight and frequency rating are within the plain bearing specification before installation. Remove all door hardware and secure the door before cutting mortises. Prime coat finish should be topcoated after installation to prevent corrosion.