On 22/01/2021 22:12, NY wrote:

I had to remove some hinges from a gatepost, and one screw out of the
four on one hinge would not budge: no matter what force I put on the
screwdriver to push it into the screw while trying to turn it, the
screwdriver just climbed out of the screw head. Drilling out the screw
head was a dead loss: in the case the screw was so hard that a
metal-rated drill just got very hot but made no impression. I ended up
having to hacksaw through the hinge to cut the moveable blade off the
part that was firmly and immovably attached to the post, and then use a
burr tool to smooth off the sharp edge on the cut end. Leaving the
remains of the hinge, as long as it was not dangerously sharp, was not a
problem in this particular case.

Two methods I've used with broken screws (snapped heads) in wood.

If there is enough shank exposed and you can grip it with mole grips
then you can get a lot of leverage to turn it. If you can only grip it
at the very end use a screwdriver in the mole grip handle as the lever.

Get a very small drill and run it down the side of the screw in perhaps
6 places. This removes enough wood to free the screw. Then drill a large
hole suitable for a wood dowel. Glue it in and then, when glue is dry,
trim to be flush with a chisel. It's possible to fit a second dowel next
to the first if you allow the glue in the first to dry before drilling a
second hole.

https://www.screwfix.com/p/easyfix-w...100-pack/1360t




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