Parts such as the Oil Pan: O Ring(d:3.2,id:17.8), Protector,oil Strainer, Valve Assembly,oil Relief, Gasket(5.8x11x1.2) (nas) are included in the Gsf600s 1997 (v) (e02 E04 E17 E18 E22 E24 E25 E34) Oil Pan parts fiche.
The component with the lowest price in the OIL PAN schematic is the Bolt.
On this parts fiche the Bolt is the most specified component.