Overview Reviews Product Description Hex nuts are used with a screw or bolt to fasten two or more parts. Grade 2 is regular strength for everyday use. Zinc plated fasteners have good corrosion resistant qualities and are a good choice for indoor, outdoor and industrial applications. Papco Nuts Catalog Product Videos Custom Field Box quantity 540 Diameter 5/8"-11 Plating Zinc Product Reviews Write a Review Write a Review × Paulin 5/8"-11 UNC Grade 2 Zinc Plated Hex Nut 540 Pc. B083-024 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *