The Screw-washer,6x16 is the cheapest item from this partsfiche.
A sample from the products for the Rear Fender include: Grom, Drain Hole, Screw Rivet Filler N, Bolt,flange 6mm, Control Unit Assy.
The thirty-five Gl1500se Goldwing Special Edition 1991 (m) England / Mkh Rear Fender component parts are all listed in this schematic.