This schematic depicts all components used in the Gl1500a Goldwing Aspencade 1994 (r) European Direct Sales / Kph Rear Case partslist.
On this parts fiche the Bolt,flange 8x45 is the most specified component.
The most reasonably priced component used on the Gl1500a Goldwing Aspencade 1994 (r) European Direct Sales / Kph Rear Case is the Bolt,flange,6x16.