#10-32 x 1.5" long, Button Head, Cap Screw.The decorative, black, round head has moe holding power than traditional caps screws. Use these if you plan on removing drivers often or just for the decorative head. A bit bigger than the #8 - best used for woofers and sub woofers. The corresponding treaded insert won't "fall out" like traditional "T" nuts. Drill a 7/32" pilot hole. Use a 4mm (5/32") hex key to tighten.
