The Bolt,flange,6x12 is the lowest priced item on this Cylinder Head Cover schematic.
Parts such as the Cylinder Head Cover: Bolt B Comp, Head Co, Pkg Set,head Cover (nas), Cover Comp,cyln.h, Bolt A Comp, Head Co are included in the Civic 2000 (y) 4dr Dx (ka) Cylinder Head Cover parts fiche.
Of all the components used in this assembly the Cover Comp,cyln.h is the most expensive.