1-14 Grade 5 Finished Hex Nut Zinc Plated Domestic USA - Bulk (130) offers reliable strength and corrosion resistance for various fastening applications. Manufactured from medium-carbon steel and heat-treated to SAE J995 Grade 5 standards, these nuts provide a proof load of 120,000 psi and excellent tensile strength. The zinc plating adds a protective layer against rust and corrosion, making them suitable for indoor and outdoor use. Proudly made in the USA, these nuts ensure durability and consistent performance.