5/8-11 Hex Nut / Grade 5 / Coarse (UNC) / Zinc Plated

A finished, heat treated hex nut made from steel with a max carbon content of .55%, minimum manganese content of .30%, and a max sulfur content of .15% (Standard Grade 5 hex nut). For use with bolts with a minimum tensile strength equal to or less than 120,000 PSI. HN58C5