18-8 Stainless Steel Finished Hex Nut, National Coarse
Stainless Finished Hex Nut, NC. A six-sided internally threaded fastener whose thickness is .875 D where D is the nominal nut size and 1.5 D is their width across the flats. Made from austenitic alloys. Designed for use with stainless steel bolts and screws with a specified minimum tensile strength equal to or less than the specified proof stress of the mating nut. Corrosion resistant.