National Marker N830224 Satin Brass Door Hinge 3.5 in

Product Description

The NATIONAL MARKER N830224 is a round-corner residential door hinge finished in satin brass. It measures 3.5 inches in height with a 0.625-inch corner radius, making it a standard fit for interior door applications. Constructed from steel, this hinge features a removable pin for straightforward installation and removal. Mounting screws are included. Licensed tradespeople and experienced DIYers handle this type of hardware during door installation or replacement projects where a clean, finished appearance and reliable pivot action are required.

This hinge is designed for use on interior residential doors where a round-corner profile is specified. The satin brass finish suits common residential trim packages. The 0.625-inch radius corners align with standard door frame mortise cuts used in typical residential construction. Minimum purchase quantity is three units, which covers a standard single-door installation requiring three hinges. This product is sold per each unit.

Key Features

• 3.5-inch hinge height with 0.625-inch round corner radius
• Removable pin for quick installation and removal
• Satin brass finish suitable for interior residential trim
• Steel construction for durability
• Mounting screws included
• Also referenced as National Model 512R5/8 or SPB512R5/8

Compatibility

Referenced as a replacement or equivalent for National Model 512R5/8 and SPB512R5/8. Designed for use on interior residential doors requiring a 3.5-inch round-corner hinge with a 0.625-inch radius.

Installation Notes

Installation is typically performed by a finish carpenter or general contractor during door hanging or replacement. Power down any associated door hardware or alarm contacts before servicing. Use a chisel and mallet to cut or clean the mortise to the correct depth before seating the hinge leaf. Confirm the corner radius of the existing mortise matches the 0.625-inch profile before installation.

Technical Specifications

• Hinge Height: 3.5 inches
• Corner Radius: 0.625 inches
• Finish: Satin Brass
• Material: Steel
• Weight: 0.419 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 3
• UPC: 00886780009644

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N830224