Infamous reversing dash frame screw

I have wondered about this a billion times. Now I know it's possible!!

Next question: is it possible to cut, grind, or otherwise remove those screws so the dash can be pulled without pulling the windshield?
Yes. I pulled one out of a 67, although the under-dash had been pretty gutted. No heater or radio, no glove box. I used a cheap HF angle cut off air grinder, small one like a die grinder, as well as a small conventional air die grinder. Small 2"? cutoff wheels.

Not very difficult