Antenna hardware

Took my antenna of my 66 GT350 for the car cover. This antenna mounts on the rear quarter. I lost the mounting hardware. The hardware was in the antenna, but must have fallen out. I purchased some setscrews that will work, but I am trying to recall what was in there? Was it allen head screws, plain, or phillips? Just one of those annoying issues. I see Branda has the antenna and hardware for 14.00, but no pictures. Thanks in advance.

Tommy