The Screw,pan,5x20 is the lowest priced item on this Front Fork schematic.
Parts such as the Front Fork: O-ring,19.5x1.5, Bush,guide, Dust Seal, Seat,spring are included in the Xr650r 2003 (3) Canada / Ref Front Fork parts fiche.
With four applications this Bolt,stud,6x34 is the most specified part.