The Screw,tap.5x16 is the lowest priced item on this Speedometer schematic.
Parts such as the Speedometer: Case Comp, Screw 4x16, Led Indicator Com, Relay Comp.,audib are included in the Sh50 Scoopy 1999 (x) England Mkh Speedometer parts fiche.
The most expensive part in this assembly is the Speedometer Assy.