M16-1.5 Zinc Plated Class 8 Steel DIN 980V All Metal Prevailing Torque Lock Nut / THREAD DIRECTION: RIGHT-HAND LOCKING FEATURE: NUT STYLE: A19A INTERNAL OR EXTERNAL WRENCHING HEXAGON THREAD SERIES: UNF THREAD QUANTITY PER INCH: 16 NOMINAL THREAD SIZE: 1.5 MILLIMETERS BEARING SURFACE TYPE: CHAMFERED PART NAME ASSIGNED BY CONTROLLING AGENCY: TOP LOCK NUT MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL