1-1/4"-7 SAE J995 Grade 5 Plain Finish Steel Jam Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND LOCKING FEATURE: FREE-RUNNING ALL METAL DESIGN NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.703 INCHES MINIMUM AND 0.767 INCHES MAXIMUM WIDTH ACROSS FLATS: 1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM THREAD SERIES: UNC THREAD QUANTITY PER INCH: 7 NOMINAL THREAD SIZE: 1.250 INCHES BEARING SURFACE TYPE: FLAT PART NAME ASSIGNED BY CONTROLLING AGENCY: GRADE 5 PLAIN HEX JAM NUT MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ASTM J995 ASSN STD SINGLE MATERIAL RESPONSE OVERALL