Some items from this specific schematic: Washer(6,5x22x1.6), Grommet,seat Lock Hole, Bolt, Cushion.
This Seat Tail Cover (gs1100esd) diagram displays the required parts for the Gs1100e 1982 (z) Usa (e03) Seat Tail Cover (gs1100esd).
In this schematic the "Bolt" is used most often.