On this parts fiche the Bolt Flange 14x10 is the most specified component.
Parts such as the Rear Beam: Bolt Flange 14x10, Bolt,flange 14x83, Bolt,flange,10x16, Stiff Rearbeam Lh are included in the Civic 2000 (y) 2dr Ex (ka) Rear Beam parts fiche.
The five Civic 2000 (y) 2dr Ex (ka) Rear Beam component parts are all listed in this schematic.