National Mfg N341-453 Steel Square Tube 0.75x36 in

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N341-453 is a hot-rolled plain steel square tube measuring 0.75 inches x 36 inches, manufactured using an electric-resistance welding process for consistent structural integrity. Designed for commercial and industrial use, this tube is suited for load-bearing and structural framing applications where dimensional accuracy and weld quality matter. Licensed contractors, fabricators, and trade professionals working on metal framing, railing systems, truck racks, and gate construction will find this tube a direct-fit structural component. It meets ASTM Specification A5, confirming baseline material and dimensional compliance for steel tubing used in demanding field conditions.

This square tube is intended for exterior applications including frames, railings, truck racks, gates, and other commercial or industrial structural assemblies. The hot-rolled plain steel construction makes it appropriate for projects where the tube will be cut to length, welded, bolted, or otherwise fabricated on site. No specific model or equipment compatibility applies — this is a raw structural material component used across a wide range of trade and fabrication workflows.

Key Features

• Hot-rolled plain steel construction for consistent material properties and weld compatibility
• Electric-resistance welded seam for uniform tube geometry and joint integrity
• 0.75 inch x 36 inch dimensions suitable for standard framing and railing fabrication
• Rated for exterior applications including gates, truck racks, and outdoor structural frames
• Meets ASTM Specification A5 for structural steel tubing compliance

Compatibility

Designed as a general-purpose structural steel square tube for use in commercial and industrial fabrication applications including frames, railings, truck racks, and gates.

Installation Notes

Installation and fabrication of structural steel tubing should be performed by qualified metal fabricators or contractors familiar with applicable structural and welding codes. Cut edges are sharp — use appropriate PPE including gloves and eye protection when cutting or drilling. For exterior installations, apply a compatible primer or protective coating after fabrication to prevent corrosion on the plain steel surface. Always follow local building codes and structural load requirements when incorporating this tube into load-bearing assemblies.