National Mfg N215-681 Solid Square Steel Bar 0.5x48 in

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N215-681 is a solid square steel bar measuring 0.5 inches by 48 inches, manufactured from hot-rolled plain steel. This general-purpose bar stock is suited for fabrication tasks where consistent section geometry and reliable material behavior are required. Hot-rolled A36 steel delivers predictable forming and welding characteristics, making it a practical choice for brackets, frames, supports, and custom metalwork. It is not rated or intended for primary structural load-bearing applications. Sold as a single piece, this bar is a standard stocking item for trade shops, contractors, and maintenance facilities that work with mild steel fabrication.

This solid square bar is appropriate for both interior and exterior applications where A36 mild steel is specified. Common use cases include custom HVAC equipment supports, plumbing hanger fabrication, electrical enclosure brackets, pool equipment mounting hardware, and general repair or retrofit metalwork. The 48-inch length provides a workable stock dimension for most bench-cut fabrication tasks. Because this is plain, uncoated hot-rolled steel, surface treatment or coating should be applied when the finished piece will face prolonged moisture exposure in exterior or high-humidity settings.

Key Features

• Hot-rolled plain A36 steel construction for consistent mechanical properties
• Meets ASTM Specification A36 for general-purpose mild steel
• Excellent forming and welding characteristics for shop and field fabrication
• Suitable for interior and exterior applications
• 0.5 inch square cross-section across a 48-inch length
• Not intended for structural load-bearing applications

Compatibility

Designed as a general-purpose hot-rolled mild steel bar for fabrication and repair applications across HVAC, plumbing, electrical, and general construction trades where A36 steel stock is appropriate.

Installation Notes

Cutting should be performed with appropriate metal-cutting tools such as an angle grinder, cold saw, or band saw rated for mild steel. Welding is compatible with standard MIG and stick processes used on A36 mild steel. Power down and de-energize any adjacent electrical or mechanical equipment before performing cutting or welding work nearby. Apply a primer or protective coating to finished pieces intended for exterior or wet-environment use to prevent surface corrosion.