National Marker N830404 Square Door Hinge 4 in Satin Nickel 3-pack

Product Description

The NATIONAL MARKER N830404 is a 4-inch square corner door hinge sold in a 3-pack with a satin nickel finish. Built from heavy-gauge cold-rolled steel, this full mortise hinge delivers the structural integrity needed for residential and light commercial door installations. The 5-knuckle design distributes load evenly across the hinge barrel, and the flush pin provides a clean, finished appearance once the door is hung. Countersunk screw holes allow fasteners to sit flush with the leaf surface. The removable pin simplifies door hanging and removal during installation or service work.

This hinge suits interior and exterior door applications where a square corner, full mortise style is specified. Typical installations include passage doors, closet doors, and utility doors in residential construction or light commercial retrofit work. The satin nickel finish coordinates with standard hardware finishes found in residential and commercial door hardware sets. Carpenters, general contractors, and facility maintenance technicians are the primary installers for this type of hardware.

Key Features

• Heavy-gauge cold-rolled steel construction for added load strength
• 5-knuckle, full mortise design for balanced hinge operation
• Square corners for standard mortise door and frame routing
• Flush pin delivers a finished, clean appearance at the barrel
• Countersunk screw holes allow fasteners to sit flush with the leaf
• Removable pin simplifies door installation and removal

Compatibility

Designed as an OEM-style replacement or new-installation hinge for standard full mortise door applications requiring a 4-inch square corner hinge with a satin nickel finish.

Installation Notes

Installation is typically performed by a carpenter or general contractor using a chisel, mallet, and drill with appropriate driver bits. Mortise the hinge seat to the correct depth so the leaf sits flush with the door edge and frame face before fastening. Verify door and frame plumb and square before final screw seating. Remove the pin before hanging heavy doors to simplify leaf alignment.

Technical Specifications

• Hinge Size: 4 inches
• Finish: Satin Nickel
• Material: Heavy-gauge cold-rolled steel
• Hinge Style: Full mortise, 5-knuckle
• Corner Type: Square
• Pin Type: Removable
• Screw Holes: Countersunk
• Package Quantity: 3 hinges per pack
• Package Weight: 1.695 pounds
• UPC: 00886780020076

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N830404