DescriptionSpecificationsDescription1/2-13, 1-1/8" Flange Diam, 11/16" High, 7/8" Across Flats, Flange Nut Grade Nylatron GS Nylon, 5/32" Flange Height, TCMAISpecificationsManufacturer Item No.CN-20NManufacturer NameMORTON MACHINE WORKS