On this parts fiche the Bolt 8x33 is the most specified component.
Parts such as the Rear Wheel: Spacer,rr Axle,r, Bearing(20x47x14), Absorber,rr Hub Shock, Seal,oil(35x62x8) are included in the Gsf600s 1999 (x) (e02 E04 E17 E18 E22 E24 E25 E34) Rear Wheel parts fiche.