In this schematic the "Clip B8,tube" is used most often.
The Bolt,hex.,6x10 is the cheapest item from this partsfiche.
Parts such as the Fuel Tank: Washer,6mm, Tank Comp.,fuel, Bolt,special,6mm, Cap Comp.,fuel Fi are included in the Pk50m Wallaroo 1990 (l) Spain / Sel Fuel Tank parts fiche.