The lowest price component in this Cowl Stay (gl1500an/sen) parts-list fiche is the Nut,flange,6mm.
Parts such as the Cowl Stay (gl1500an/sen): Sensor,air Temper, Stay Comp.,cowl, Bolt,flange,6x16, Washer 6mm are included in the Gl1500se Goldwing Special Edition 1992 (n) Belgium / Kph Cowl Stay (gl1500an/sen) parts fiche.
On this parts fiche the Washer 6mm is the most specified component.