National Marker N830247 Door Hinge 3 in Satin Nickel

Product Description

The NATIONAL MARKER N830247 is a 3-inch round-corner residential door hinge finished in satin nickel. Designed for interior door applications, this steel hinge features a 1/4-inch corner radius and a removable pin that simplifies installation and removal. Mounting screws are included. This hinge is suited for general residential interior door work and is sold individually, making it easy to purchase the exact quantity needed for a job. Licensed contractors, finish carpenters, and experienced DIYers handle this type of hardware as part of standard interior door hanging work.

This hinge is intended for use on interior residential doors where a round-corner mortise profile with a 1/4-inch radius is required. The satin nickel finish suits common residential hardware finishes. The removable pin design allows for efficient door removal without disturbing the hinge leaves. The included screws mean no separate fastener sourcing is needed for a standard installation. This product corresponds to National Model 512RC as referenced in manufacturer documentation.

Key Features

• 3-inch hinge size for standard interior residential door applications
• 1/4-inch round corner radius matches standard mortise router profiles
• Removable pin for quick door hanging and removal
• Satin nickel finish for common residential hardware compatibility
• Steel construction for durability in interior door use
• Mounting screws included — no separate fastener purchase required

Compatibility

Designed as an OEM-style replacement and standard-fit hinge for interior residential doors requiring a 3-inch, 1/4-inch-radius round-corner mortise profile. Referenced as National Model 512RC in manufacturer documentation.

Installation Notes

Installation is performed by carpenters, finish contractors, or experienced DIYers during interior door hanging. Power tools are not required, though a chisel and mallet are typically used to cut the mortise in the door and jamb. Ensure the door is properly supported before removing or installing hinges. Follow local building codes for door hardware requirements on fire-rated or egress door assemblies.

Technical Specifications

• Hinge Size: 3 inches
• Corner Radius: 1/4 inch
• Finish: Satin Nickel
• Material: Steel
• Pin Type: Removable
• Weight: 0.303 pounds
• Unit of Measure: Each
• UPC: 00886780009873

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N830247