National Marker N830322 Door Hinge 3.5 in Polished Brass 3-pack

Product Description

The NATIONAL MARKER N830322 is a 3-pack of 3.5-inch by 0.625-inch radius-corner door hinges finished in polished brass. Each hinge is constructed from heavy-gauge cold-rolled steel for structural rigidity while the polished brass finish delivers a clean, professional appearance. The 5-knuckle design provides smooth pivot action and even load distribution across the door leaf. Counter-sunk screw holes allow fastener heads to sit flush with the hinge plate, reducing snag points and producing a finished install. These hinges are sold as a 3-pack, covering a standard single-door application in one order. Licensed contractors, finish carpenters, and door hardware installers will find the radius corner profile suited to modern pre-hung door frames.

These hinges are appropriate for residential and light commercial door installations where a polished brass radius-corner hinge is specified. Common applications include interior passage doors, closet doors, and utility doors requiring a decorative yet durable pivot hardware solution. The cold-rolled steel core handles routine door-weight loads while the brass finish blends with standard interior hardware trim packages. Each pack contains three hinges, the typical quantity needed for a single door leaf.

Key Features

• Heavy-gauge cold-rolled steel construction for added strength and durability
• Polished brass finish for a clean, decorative appearance
• 5-knuckle design for smooth operation and even load distribution
• Radius corners for a finished, modern profile
• Counter-sunk screw holes allow fastener heads to sit flush with the hinge plate
• Sold as a 3-pack to cover a standard single-door installation

Compatibility

Designed as an OEM-style replacement or new-installation hinge for standard residential and light commercial interior doors requiring a 3.5-inch by 0.625-inch radius-corner hinge with a polished brass finish.

Installation Notes

Installation is typically performed by a finish carpenter, door installer, or general contractor using a chisel, drill, and appropriate wood screws. Ensure door and frame mortises are cut to the correct depth so hinge leaves sit flush before fastening. Use all provided screw holes to achieve rated load capacity and prevent racking over time. Follow applicable local building codes for door hardware installation in commercial occupancies.

Technical Specifications

• Hinge Height: 3.5 inches
• Hinge Width: 0.625 inches
• Corner Style: Radius
• Finish: Polished Brass
• Material: Heavy-gauge cold-rolled steel
• Knuckle Count: 5
• Package Quantity: 3 hinges per pack
• Package Weight: 1.355 pounds
• UPC: 00886780007688

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N830322