On this parts fiche the Bolt,flange,6x35 is the most specified component.
The component with the lowest price in the LEFT CRANKCASE COVER/ WATER PUMP/REAR COVER schematic is the Washer Seal, 6mm.
twenty-eight components are shown in this Xrv750 Africa Twin 1992 (n) England Left Crankcase Cover/ Water Pump/rear Cover exploded diagram.