The Bolt-upset-ws is the cheapest item from this partsfiche.
The Taillight(s) assembly is constructed from several parts from which the Lamp-tail is the most expensive.
Parts such as the Taillight(s): Lens,tail Lamp, Bolt-upset-ws, Bolt,6x16, Lens,tail Lamp are included in the Ar50c6 1988 Europe Uk Gr Taillight(s) parts fiche.