5/8"-11 A194 2-H Galvanized Heavy Hex Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.609 INCHES NOMINAL END ITEM IDENTIFICATION: 2320-01-544-2244 WIDTH ACROSS FLATS: 1.160 INCHES NOMINAL THREAD SERIES: UNC THREAD QUANTITY PER INCH: 11 NOMINAL THREAD SIZE: 0.625 INCHES BEARING SURFACE TYPE: FLAT MATERIAL: STEEL OVERALL