I want to unscrew the box containing 4 or 6 3-pin sockets in order to put in a longer lead. (Actually it is a 6-socket box with surge protection, and they only seem to come with 2 metre leads.)
The bolts or screws holding the box together seem to be of a special type that cannot be turned with a normal screwdriver. Is there any way of opening these boxes short of drilling out these screws?