The component with the lowest price in the FRONT GRILLE ('78-'79) schematic is the Screw, Tap (5x25).
In this schematic the "Bolt,a.side,mldg" is used most often.
A sample from the products for the Front Grille ('78-'79) include: Bolt,a.side,mldg, Screw,tap,5x12, Nut,special,4mm, Mold Fr Gril Up.