In this schematic the "Bolt,gearshift Dr" is used most often.
The most reasonably priced component used on the Gl1500c Valkyrie 2002 (2) European Direct Sales / Kph Taillight (2) is the Screw,tap 4x10.
A sample from the products for the Taillight (2) include: Rubber,tail/lt Mt, Packing.lens, Lens,tail Light, Rub.,no.brkt.cush.