The Screw,tapping,4x16 is the lowest priced item on this Front Grille schematic.
Parts such as the Front Grille: Mldg,fr Gr*nh578*, Clip, Bpr A, Base,fr Grille, Mldg,fr G*nh623m* are included in the Civic 2004 (4) 4dr Dx (ka) Front Grille parts fiche.
In this schematic the "Screw Tapp 3x12" is used most often.