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The NATIONAL MFG/SPECTRUM BRANDS HHI N341-420 is a solid flat steel bar measuring 1.5 inches wide by 36 inches long, manufactured from hot-rolled plain steel for use in construction and industrial support applications. At 1.91 pounds, it offers a solid, workable profile that balances strength with ease of fabrication. The hot-rolled plain steel construction provides excellent forming and welding characteristics, making it a practical choice for structural bracketing, framing supports, bracing, and custom metalwork. Installation is handled by contractors, ironworkers, and skilled tradespeople working in both interior and exterior environments.
This flat bar is suited for a wide range of construction and industrial applications where a reliable steel support member is needed. Its exterior-grade suitability makes it appropriate for outdoor structural use, fencing reinforcement, gate hardware, equipment mounting, and general fabrication projects. The ASTM-compliant material specification ensures the steel meets defined standards for mechanical properties, giving tradespeople confidence in material consistency across applications.
Designed as a general-purpose steel flat bar for construction and industrial support applications where hot-rolled plain steel stock is specified.
This flat bar is typically cut, drilled, or welded into place by contractors or fabricators using standard metalworking tools. Wear appropriate PPE including gloves and eye protection when cutting or grinding. For exterior installations, consider applying a protective coating after fabrication to minimize surface oxidation. Verify local building codes and applicable standards before use in load-bearing structural assemblies.
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