National Hardware N273-920 Plain Steel Weld-on Hinge 4x4

Product Description

The NATIONAL HARDWARE N273-920 is a heavy-duty plain steel weld-on hinge designed for surface mounting on metal applications. Constructed from cold-rolled steel with a steel pin, this nonswaged hinge measures 4 x 4 inches and features a nonremovable, tight pin for added security in demanding installations. The plain steel finish is left uncoated, making it well-suited for applications where the hinge will be welded directly to a metal surface and subsequently finished or painted. Metal fabricators, ironworkers, and maintenance welders are the typical installers of this type of hardware.

This hinge is intended for surface application by welding on metal structures. Its nonswaged construction and tight nonremovable pin make it appropriate for gates, enclosures, doors, and fabricated metal assemblies where a secure, weld-on connection is required. The heavy-duty build suits both light industrial and commercial applications where standard screw-mount hinges are not appropriate or sufficient for the load or environment.

Key Features

• Nonswaged heavy-duty hinge designed specifically for weld-on surface application
• Cold-rolled steel construction for consistent material quality and weldability
• Nonremovable tight pin for enhanced security and tamper resistance
• Plain steel finish suitable for field painting or coating after installation
• 4 x 4 inch leaf size for substantial door or gate panels

Compatibility

Designed as a weld-on surface-mount hinge for metal doors, gates, enclosures, and fabricated steel assemblies requiring a nonremovable pin hinge.

Installation Notes

Installation is performed by welding and should be carried out by a qualified welder or metal fabricator using appropriate welding equipment and personal protective equipment. Ensure the mounting surface is clean, free of scale, and properly fixtured before tacking into position. Follow applicable AWS welding standards and local codes for structural or load-bearing applications. Inspect the weld bead for full penetration and allow the assembly to cool completely before applying load or finish coatings.