1-1/4"-12 SAE J995 Grade 5 Zinc Finish Steel Jam Nut / THREAD DIRECTION: RIGHT-HAND NUT STYLE: A12 HEXAGON NUT HEIGHT: 0.687 INCHES MINIMUM AND 0.751 INCHES MAXIMUM END ITEM IDENTIFICATION: MRAP MATV WIDTH ACROSS FLATS: 0.875 INCHES MINIMUM AND 1.812 INCHES MAXIMUM THREAD SERIES: UNF THREAD QUANTITY PER INCH: 12 NOMINAL THREAD SIZE: 1.250 INCHES PART NAME ASSIGNED BY CONTROLLING AGENCY: 1 1/4-12, HEX JAM NUT, SAE J995 GRADE 5, ZINC PLATED SPECIAL FEATURES: MADE WITH CARBON STEEL MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL EXCEPT THREADS