In this schematic the "Collar,fr.fender" is used most often.
Parts such as the Taillight: Nut,flange,6mm, Packing,seal, Reflex Refl R.h, Reflex Refl L.h are included in the Cb250 Nighthawk 1995 (s) Usa Taillight parts fiche.
Of all the components used in this assembly the Sub,tail Light is the most expensive.