Luke III trem claw screw size

I just got a brand new Luke III and I’m trying to set it up so the trem does not float. So, I figured I’d just tighten up the trem claw screws. Problem is one of the screws is slightly stripped and does not appear to let me tighten it into the body. I was able to totally remove it but man it was pretty tough.

Does anyone know what the actual size is of the trem claw screws? I want to replace this one since it’s stripped.

Has anyone else had issues with the trem claw screws? I had to try 4 or 5 different screwdrivers before I found one that would grab the screw head sufficiently.

Scott