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Square Nuts, Grade 2, Plain (Inch)
Square Nuts Grade 2 Plain are low-carbon steel fasteners featuring a four-sided design that provides greater surface contact with the mating part compared to hex nuts. This larger bearing surface helps reduce the risk of rounding and provides strong resistance to loosening. Manufactured to meet ASTM Grade 2 specifications, these nuts offer dependable performance in general-purpose, light-duty applications. The plain (uncoated) finish provides excellent weldability and torque consistency, making them ideal for indoor use or applications where secondary surface treatments may be applied.
Plain Grade 2 Square Nuts are commonly used in machinery, furniture assembly, and construction where a simple, robust fastening solution is required. Their square shape allows for easy gripping with tools and ensures a secure fit, even on rough or oversized holes. The uncoated finish provides a clean, raw steel surface suitable for plating, painting, or galvanizing after installation. These nuts deliver reliable fastening strength and a traditional design that’s ideal for restoration, structural, and general industrial use.
