The HEX NUT UNC ZINC 7/8"-9 GR 5 is a high-quality finished hex nut made from low carbon steel, ensuring strength and durability. This nut is specifically designed for use with grade 5 bolts, providing a proof load of 120, making it ideal for a variety of automotive and industrial applications. With its zinc plating, it offers enhanced corrosion resistance, ensuring longevity and reliability in demanding environments. Trust this hex nut to deliver the performance you need in your projects.