National Hardware N830-232 3 Inch Square Corner Door Hinge

Product Description

The NATIONAL HARDWARE N830-232 is a square corner residential door hinge designed for interior door installations. Constructed from steel, this hinge features a removable pin that simplifies installation and removal without specialized tooling. Mounting screws are included. The hinge is sized for standard 3-inch residential door applications and is suited for interior passage doors in residential construction and remodel work. It is typically installed by carpenters, general contractors, or experienced DIYers performing door hanging or replacement work.

This hinge is intended for interior residential door applications. Its square corner profile is compatible with standard door and frame mortises used in residential construction. The removable pin design allows doors to be lifted free of the frame without removing the hinge leaves from the door or jamb, which is useful during finish carpentry and trim work.

Key Features

• Square corner profile matches standard residential door and frame mortises
• Removable pin allows door removal without uninstalling hinge leaves
• Steel construction provides durable everyday performance for interior doors
• Mounting screws included for complete out-of-box installation
• Sized for 3-inch residential interior door applications

Compatibility

Designed as an OEM-style replacement and standard fitment for interior residential doors requiring a 3-inch square corner hinge. Also referenced as National Model SPB512.

Installation Notes

Installation is typically performed by carpenters or general contractors using a chisel and drill for mortise preparation. Ensure the door and frame mortises are sized to accept a square corner hinge leaf before installation. Align hinge leaves flush with the door edge and jamb face before driving screws to prevent binding. No electrical shutoff or gas isolation is required for this hardware installation.