The Screw Washer 5x16 is the lowest priced item on this Rear Fender (1) schematic.
This schematic depicts all components used in the Cbr600f Hurricane 1987 (h) Germany / Kph Rear Fender (1) partslist.
The Rear Fender (1) is made up of components including this Spark Unit (oki) which is the most expensive.