Hager Hinge 175444 Full Mortise Spring Hinge 4x4 Steel Satin Brass

Product Description

The HAGER HINGE 175444 is a full mortise residential spring hinge designed for standard door installations where automatic return or controlled closing is required. Built from steel with a satin brass finish, this hinge measures 4 inches x 4 inches with a 5/8 inch radius corner profile. The full mortise design requires a routed pocket in both the door edge and the door frame, resulting in a flush, clean installation. Licensed carpenters, door hardware installers, and general contractors typically install this hinge during new construction or door replacement projects. The spring mechanism provides controlled door closing without a separate closer unit.

This hinge is suited for residential interior and light-duty door applications where a self-closing function is needed. Common install scenarios include utility rooms, stairwell doors, and any door required by local code to self-close. The satin brass finish coordinates with standard residential hardware sets. Per the supplier data, this item must be ordered in multiples of 2, as spring hinges are installed in pairs on most residential door configurations to ensure balanced operation and even spring tension distribution across the door.

Key Features

• Full mortise design for flush, recessed installation in door edge and frame
• Built-in spring mechanism provides automatic door return without a separate closer
• Steel construction for durability in residential applications
• 4 inches x 4 inches leaf size with 5/8 inch radius corners for standard residential fitment
• Satin brass finish for compatibility with common residential hardware finishes
• Must be ordered in multiples of 2 to complete a proper hinge set

Compatibility

Designed as an OEM-style replacement or new-construction spring hinge for standard residential full mortise door applications requiring a 4 inches x 4 inches hinge with 5/8 inch radius corners.

Installation Notes

Installation of this full mortise spring hinge requires precise routing of mortise pockets in both the door edge and the door jamb to achieve a flush fit. A licensed carpenter or experienced door hardware installer should verify door thickness and frame material before routing. Adjust spring tension only with the proper hinge pin tool — never remove the hinge pin while the door is under spring load. Follow applicable local building codes for self-closing door requirements, particularly in fire-rated or code-mandated egress applications.