7/8"-14 Grade C Zinc 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: 0.724 INCHES MINIMUM AND 0.922 INCHES MAXIMUM END ITEM IDENTIFICATION: MRAP BUFFALO MK2A2 WIDTH ACROSS FLATS: 1.269 INCHES MINIMUM AND 1.315 INCHES MAXIMUM THREAD SERIES: UNF THREAD QUANTITY PER INCH: 14 NOMINAL THREAD SIZE: 0.875 INCHES BEARING SURFACE TYPE: CHAMFERED THREAD TOLERANCE CLASS: 1 INTERNAL PART NAME ASSIGNED BY CONTROLLING AGENCY: ZINC PLATED TOP LOCK NUT SPECIAL FEATURES: MATERIAL SPECIFICATION IS IFI 100/107; THICKNESS IS 0.922 INCHES NOMINAL; MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL