I'm back with my dual 3.5" speaker brackets

Maybe this will clear up a few questions regarding the OEM speaker mounting screws. They are about 1/2" long, and as best I can determine are #10-24 (checked with my thread gauge.) As I said earlier, they are specially shaped and work in conjunction with a thin, stamped clip to fasten the speaker to the dash. The clip snaps into a slotted hole in the dash near the defroster vent. The nuts are speed nuts.

Jerry