1/4"-20 18-8 Stainless Steel Finished Hex Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.22 INCHES NOMINAL INSIDE WIDTH ACROSS FLATS: 0.25 INCHES NOMINAL END ITEM IDENTIFICATION: MRAP M-ATV UI WIDTH ACROSS FLATS: 0.43 INCHES NOMINAL THREAD SERIES: UNC THREAD QUANTITY PER INCH: 20 NOMINAL THREAD SIZE: 0.250 INCHES BEARING SURFACE TYPE: CHAMFERED MATERIAL: STEEL CORROSION RESISTING OVERALL