Parts such as the Fuel Cock: Bolt(6x20), Tube,hose, Cock Assembly,fuel, Hose,fuel Pump & Cock are included in the Vs700glef Intruder 1987 (h) Usa (e03) Fuel Cock parts fiche.
The Bolt(6x20) is the cheapest item from this partsfiche.
In this schematic the "Bolt(6x20)" is used most often.