Parts such as the Taillight: Base Gasket, Bulb, Nut Special 5mm, Lens are included in the Civic 1992 (n) 3dr Dx (ka,kl) Taillight parts fiche.
The lowest price component in this Taillight parts-list fiche is the Nut,flange,5mm.
The Taillight assembly is constructed from several parts from which the Light Assy L,tail is the most expensive.