The most expensive part in this assembly is the Stay,headlight.
The Bolt-washer,6x12 is the lowest priced item on this Headlight schematic.
Parts such as the Headlight: Nut,hd/lt Case, Bolt-washer,6x12, Washer,head Light, Horn Assy. are included in the Cbx1000 Supersport 1979 (z) Australia Headlight parts fiche.