With a quantity of two pieces, the Screw-pan-cros is the most used part in the TAIL LAMP diagram.
Parts such as the Tail Lamp: Nut,4mm, Washer,plain,4mm, Body-comp-tail Lamp, Spacer,6.3x8.3x10 are included in the Ksf250-a4 Mojave250 1990 Usa Tail Lamp parts fiche.
Of all the components used in this assembly the Lamp-assy-tail is the most expensive.