On this parts fiche the Washer(10x15x1.5) is the most specified component.
twelve components are listed in the schematic for this Vz800 1997 (v) (e02 E04 E17 E18 E22 E24 E25 E34) / P37 Front Master Cylinder .
The Screw is the lowest priced item on this Front Master Cylinder schematic.