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Heavy Hex Nut, A563 A, Zinc Cr+3 (Inch)
Heavy Hex Nuts A563 Grade A Zinc Cr+3 are general-purpose carbon steel fasteners manufactured to ASTM A563 Grade A specifications. Designed with a larger hex size and thicker body than standard hex nuts, they provide increased strength, better load distribution, and enhanced wrenching capability. The Zinc Cr+3 (trivalent chrome) plating adds excellent corrosion resistance and a bright, clean finish, making these nuts ideal for indoor and outdoor applications where moderate protection from rust is needed.
Engineered for reliable fastening performance, A563 Grade A Heavy Hex Nuts with Zinc Cr+3 plating are commonly used with structural bolts, threaded rods, and anchors in construction, machinery, and maintenance projects. The environmentally friendly Cr+3 coating offers long-lasting resistance to oxidation and a smooth surface for consistent torque control. Durable, cost-effective, and compliant with ASTM standards, these nuts are suitable for a wide range of general fastening applications.
