69 Dart taillight bezel screws????!!!!!????

Something like this?

No, those won't work. The screws are a machine thread, and only about 3/8" long. They just barely thread through the housing, and if they are too long they run into the sheet metal that makes the edge of the hole for the light bucket. Note to the OP, don't overtighten the screws, or you will strip out the threads. Don't ask me how I know this please.