The eighteen Gsx1100es 1986 (g) (e01 E16 E17 E21 E22 E25 E34) Fuel Tank (gsx1100efe E2) component parts are all listed in this schematic.
The Fuel Tank (gsx1100efe E2) is made up of components including this Tank Assy, Fuel (white) which is the most expensive.
On this parts fiche the Screw is the most specified component.