DIYbanter - View Single Post - how to remove one-way screws?

[email protected]

Chris Hodges wrote:
wrote:
I bought a bungalow, with locks on most windows. I can't remove a
window to repair it, without removing the window lock first.
It has 2 one-way screws fixing it to the window frame. I can't
drill into the screws, as they are a hardened metal. I tried
gluing a screwdriver the the screwhead with epoxy resin, but that
didn't work. I could attack the lock with an angle grinder, but
I know that will make a mess, and require putting lots of protective
covering in place first.
Any other ideas?

The "standard" way IME is to dremel a slot into them - even a
pseudo-dremel or big rotary engraver is up to it (though slow) but it's
worth buying a decent cutoff wheel.

My wife had an engraving tool in her hobby box. It included a carbide
disc about 1 mm
thick and 13 mm diameter. With that I could make a slot in the screw
heads.