The Screw Pan Head is the cheapest item from this partsfiche.
Parts such as the Flasher Light: Gasket,flasher Lans (nas), Bulb,flasher(6v18w), Stay,flasher 1, Screw, Lens Fitting (3x32) are included in the Ct3 1973 Usa Flasher Light parts fiche.
The most expensive part in this assembly is the Rear Flasher Lamp Assy (r.h).