1"-8 Grade 9 ECOGUARD® Finish Steel Top Lock Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN NUT STYLE: A12 HEXAGON NUT HEIGHT: 1.018 INCHES NOMINAL END ITEM IDENTIFICATION: 3805-01-533-1853 WIDTH ACROSS FLATS: 1.438 INCHES NOMINAL THREAD SERIES: UNC THREAD QUANTITY PER INCH: 32 NOMINAL THREAD SIZE: 0.164 INCHES BEARING SURFACE TYPE: FLAT PART NAME ASSIGNED BY CONTROLLING AGENCY: TOP LOCK NUT MATERIAL: STEEL OVERALL