National Mfg N830-424 3 in Square Black Hinge 15 Pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N830-424 is a 3-inch square black hinge built for interior door and cabinet applications where a clean, finished look is required. Constructed from heavy-gauge cold-rolled steel, this full mortise hinge delivers reliable load-bearing performance in residential and light commercial settings. The five-knuckle design provides stable pivot action, while the flush pin gives the installed hinge a refined appearance. Countersunk screw holes and included fasteners make mounting straightforward. This package contains 15 hinges, making it suitable for multi-door projects or contractor stocking.

The N830-424 is suited for interior door installations, cabinet doors, and millwork applications where a square-corner, full mortise hinge is specified. The black finish coordinates with dark hardware schemes common in modern residential and commercial interiors. The removable pin design allows doors to be lifted off without removing the hinge leaves, which is practical during staged installation or renovation work. Carpenters, finish contractors, and general contractors are the typical installers for this type of hardware.

Key Features

• Heavy-gauge cold-rolled steel construction for added strength and durability
• Five-knuckle, full mortise design for stable pivot action
• Flush pin for a finished, low-profile appearance
• Square corner design suits standard mortise cutouts
• Countersunk screw holes with fasteners included for complete installation
• Removable pin allows easy door hanging and removal

Compatibility

Designed as an OEM-style replacement or new-installation hinge for standard full mortise door and cabinet applications requiring a 3-inch square corner hinge.

Installation Notes

Installation is typically performed by carpenters or finish contractors using a chisel and router for mortise preparation. Ensure the door is properly shimmed and supported before driving fasteners. Use all provided screws to achieve full holding strength in the mortise. Follow applicable local building codes when installing hinges on fire-rated door assemblies.