Parts such as the Cylinder Head: Bolt Flange Nshf 6x2, Dowel,pin,14x20, Bolt.hex.5x8, Washer Sealing are included in the Xr650r 2000 (y) General Export / Kph Ssw Cylinder Head parts fiche.
The Bolt.hex.5x8 is the cheapest item from this partsfiche.
In this schematic the "Bolt,flange,nshf," is used most often.