"Alec" wrote in message
...
I'm trying to replace the broken hinges on top-opening uPVC double glazed
unit. But some of the screws attaching them to the frame have rusted
through. I sprayed WD40 but I get no grip at all with my screwdriver. Is
there a way to remove the screws without causing damage to the frame? TIA.

Slot head/Posidrive or Phillips