On this parts fiche the Bolt 6x20. Torx Eart is the most specified component.
This schematic depicts all components used in the Civic Coupe 2005 (5) 2dr Lx (ka) Srs Unit partslist.
The most reasonably priced component used on the Civic Coupe 2005 (5) 2dr Lx (ka) Srs Unit is the Bolt 6x20. Torx Eart.