The component with the lowest price in the SRS UNIT schematic is the Bolt 6x20. Torx Eart.
On this parts fiche the Bolt 6x20. Torx Eart is the most specified component.
The Civic 2003 (3) 2dr Lx Side Srs (ka) Srs Unit consists of seven pieces with the Unit Assy,srs being the most expensive.