The fifty-one Gl1500se Goldwing Special Edition 1991 (m) Switzerland / Kph Front Fork component parts are all listed in this schematic.
On this parts fiche the Bolt,socket,6x16 is the most specified component.
A sample from the products for the Front Fork include: Socket Bolt,6x10, Collar, Washer,spl.,8mm, Bolt,fr Fork.