The lowest price component in this Taillight (h1/a) parts-list fiche is the Washer-spring,5mm.
On this parts fiche the Screw-pan-cros is the most specified component.
A sample from the products for the Taillight (h1/a) include: Washer-plain,6mm, Socket-tail Lamp, Lamp Assy-tail, Bolt-hex Head,5x12.