On this parts fiche the Washer,oil Bolt is the most specified component.
Some items from this specific schematic: Boot Comp., Bolt,flange,6x10, Nut,cap,6mm, Washer,oil Bolt.
This Fr. Brake Master Cylinder diagram displays the required parts for the Gl1500c Valkyrie 1997 (v) Switzerland Fr. Brake Master Cylinder.