CA Door Speaker Grille Screws

CA's door speaker grille screws primary purpose is simply to attach the speaker grille to the door panel. By securing the speaker grille can greatly reduce movement and help prevent "back-wave cancellation," where sound from the back of the speaker cone leaks out and distorts the sound from the front. These speaker grille screws, which are often black oxide-finished to be less conspicuous, are part of original equipment for specific generations of Corvette vehicles, such as the 1978–1982 C3 and 1984–1993 C4 models.