[Amps] Hex Head Screw Problem and Associated Temper Tantrum

[Joe Giacobello]

I am trying to stay calm....

I am trying to open up the cabinet on my Command VHF-1200.  It uses 
screws with recessed hex heads.  I was able to remove some of them, but 
some seemed to be put in extra tight and in trying to unscrew them I 
have rounded the hexagonal shape.  The screw heads are so shaped that 
you can't even grip then with a pliers, etc.  Is my only recourse 
drilling out the screws?  How can I do that without damaging the female 
threads on the frame?  Or should I plan on replacing the screws with 
self-tappers?

73, Joe