What is the size of the screws that screw the speakers to the front door enclosures for a 99 Trans Am? Not the bolts that bolt the enclosure to the door, but the 4 screws that screw the speaker to the enclosure. One of the previous owners removed all the screws from all the speakers and the rear amp and replaced them with zipties. Every screw and the amp bolts... Gone...

I have the amp bolts and know what I need for the sail panels, but the front enclosures are eluding me. Sadly, they didn't need to do this as all the speakers have holes that match the speaker mounting holes exactly. So, the zipties are a mystery.