The most reasonably priced component used on the Civic 2003 (3) 2dr Ex (ka) Srs Unit is the Bolt 6x20. Torx Eart.
This SRS UNIT assembly utilises seven Bolt 6x20. Torx Eart(s) - the highest specified component.
This schematic depicts all components used in the Civic 2003 (3) 2dr Ex (ka) Srs Unit partslist.