Parts such as the Air Cleaner: Bolt,flange,6x40, Screw,cross 4x25, Bolt,fr Cush.und., Tapping,5x20 are included in the Sh100 Scoopy 2000 (y) Italy Wlb Air Cleaner parts fiche.
The Screw,cross 4x25 is the cheapest item from this partsfiche.
In this schematic the "Tapping,5x20" is used most often.