On this parts fiche the Screw 6x12 is the most specified component.
seventeen components are shown in this Rm85 2002 (k2) Usa (e03) Fuel Tank (model K4) exploded diagram.
The most reasonably priced component used on the Rm85 2002 (k2) Usa (e03) Fuel Tank (model K4) is the Screw 6x12.