1-1/4"-12 SAE J995 Grade 2 Plain Finish Steel Slotted Hex Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND NUT STYLE: A17 SLOTTED, HEXAGON NUT HEIGHT: 1.219 INCHES NOMINAL WIDTH ACROSS FLATS: 2.000 INCHES NOMINAL THREAD SERIES: UNF THREAD QUANTITY PER INCH: 12 NOMINAL THREAD SIZE: 1.250 INCHES BEARING SURFACE TYPE: FLAT MATERIAL: STEEL OVERALL