The Screw-washer 4x16 is the lowest priced item on this Taillight (cb600f3/4/5/6) schematic.
With two applications this Socket is the most specified part.
Parts such as the Taillight (cb600f3/4/5/6): Stay R Tail Light, Bulb,tail Light, Cord Comp, Light Assy Licens are included in the Cb600f Hornet 2003 (3) France Taillight (cb600f3/4/5/6) parts fiche.