Hoffman PM6CN250 Cage Nut Pkg (250), M6, Steel/ZincCage Nut Packages are for use with square-hole rack angles. Cage nuts are plated steel. Product Specifications BRANDHoffman® COLOR FINISHZinc MANUFACTURERS PART NUMBERPM6CN250 CONSTRUCTIONSteel DESCRIPTIONM6 Cage Nut QUANTITY250