The Screw,wash,4x10 is the cheapest item from this partsfiche.
Parts such as the A/i - Wire Harness 86-87: Rectifier,silicon, Box Assy.,fuse, Blade Fuse 15a, Harness,wire are included in the Gl1200i Goldwing Interstate 1986 (g) Usa California A/i - Wire Harness 86-87 parts fiche.
On this parts fiche the Blade Fuse 10a is the most specified component.