The Kawasaki TAILLIGHT (H1-B/C) has sixteen products enlisted in the schematic.
A sample from the products for the Taillight (h1-b/c) include: Case-tail Lamp, Bulb,12v 32/3cp, Washer-spring,6mm, Bolt-upset,6x40.
On this parts fiche the Screw-pan-cros is the most specified component.