This schematic depicts all components used in the Civic 1998 (w) 4dr Lx (ka) Brake Master Cylinder -master Power partslist.
On this parts fiche the Nut-wash.,8mm is the most specified component.
The most reasonably priced component used on the Civic 1998 (w) 4dr Lx (ka) Brake Master Cylinder -master Power is the Nut,hex.,8mm.