3/8"-16 ASTM F467 Plain Finish Brass Jam Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM END ITEM IDENTIFICATION: 5895-01-625-5931 WIDTH ACROSS FLATS: 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM THREAD SERIES: UNC THREAD QUANTITY PER INCH: 16 NOMINAL THREAD SIZE: 0.375 INCHES BEARING SURFACE TYPE: FLAT PART NAME ASSIGNED BY CONTROLLING AGENCY: BRASS HEX JAM NUT MATERIAL: COPPER ALLOY OVERALL