National Marker N830323 Door Hinge 3.5 in Square 3 Pack

Product Description

The NATIONAL MARKER N830323 is a 3.5-inch square door hinge finished in oil rubbed bronze, sold in a 3-pack. Built from heavy-gauge cold-rolled steel, this hinge is engineered for strength and durability in residential door installations. The 5-knuckle design provides smooth operation and a finished appearance, while counter-sunk screw holes allow fasteners to sit flush with the hinge leaf. A removable pin simplifies door hanging and removal during installation or service work. This hinge is a standard hardware item installed by carpenters, general contractors, and experienced DIYers.

This hinge is suited for interior and exterior residential door applications where a traditional oil rubbed bronze finish is specified. The 3.5-inch square format is a common size for standard passage doors. The 3-pack quantity covers a single door requiring three hinges, which is typical for taller or heavier door slabs. Catalog reference for this item is National Catalog Model V512.

Key Features

• Heavy-gauge cold-rolled steel construction for added strength
• 5-knuckle design for smooth swing and finished appearance
• Counter-sunk screw holes for flush fastener seating
• Removable pin for easier door installation and removal
• Oil rubbed bronze finish for a traditional aesthetic
• 3-pack quantity covers a single standard door

Compatibility

Designed as a standard 3.5-inch square residential door hinge suitable for typical passage door applications where an oil rubbed bronze finish is required.

Installation Notes

Installation is performed by carpenters or general contractors using a chisel, drill, and appropriate wood screws. Power to any adjacent electrical components should be addressed before working in the door frame area. Confirm door frame mortise depth matches hinge leaf thickness before fastening. Use all provided screw holes for full load-bearing capacity.

Technical Specifications

• Hinge Size: 3.5 inches square
• Finish: Oil Rubbed Bronze
• Material: Heavy-gauge cold-rolled steel
• Knuckle Count: 5
• Pin Type: Removable
• Screw Holes: Counter-sunk
• Package Quantity: 3
• Package Weight: 1.325 pounds
• UPC: 00886780007695

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N830323