The most reasonably priced component used on the Civic 2003 (3) 4dr Gx Side Srs (ka) Rear Beam is the Bolt Flange 8x12.
The Honda REAR BEAM has eight products enlisted in the schematic.
Some items from this specific schematic: Damper Fr Sub Frame, Bolt Flange 8x12, Bolt,wash 10x32, Bolt,flange.8x16.