I can't unscrew the screw because it has deformed. What to do?

Question

I have such a radio to open. I unscrewed all the screws, but unfortunately the last one does not want to unscrew anymore, because the cross shape on the upper part of the screw has crumbled and deformed - now it is such a round hole. : / Question: What can I do to unscrew this screw? It is...

darek4455 · Answer

First, pop the WD-40 and try to unscrew it if you fail, you can saw it off and then unscrew it with pliers

M-Zalew · Answer

Why WD-40? :| There is no way to saw it off, because there is plastic around ...

michcior · Answer

Such screws are removed by drilling a hole in them. After that, you can use a special tool for loosening, which looks like a screw but has a thread on the other side. Well, only this screw of yours is probably so small that there is no need to drill in it. Just drill open the head until it comes off. Then you can somehow catch what is left if what is holding the screw has a thickness.

arewin · Answer

You have two options, the first is drilling with an appropriate drill (the diameter of the screw head is equal to the size of the drill), the second is uncoupling with a left-hand drill, when you try to drill it, it is possible to unscrew it by itself - Good luck ...)

ja-kenaj · Answer

After dropping a few drops of WD, wait about 30 minutes. In the meantime, if you have a grinder, sharpen the screwdriver in the shape of a triangular pyramid with sharp edges so that the top of the pyramid does not rest on the screw. Only the side edges of the screwdriver made in this way must touch the screw.
Good luck.

Anonymous · Answer

A small note: drill the screw head not with a drill with the diameter of the head, but smaller - slightly larger than the diameter of the thread. This way you have less drilling.

Such drilling will make it possible to remove the cover and unscrew the screw core with, for example, pliers.

Anonymous · Answer

WD40 won't do anything there, stop with such advice.

Sasni · Answer

Sometimes I do it so that I stick a small chisel into such a screw or directly a screwdriver to create a groove instead of one hole. Thanks to this, it is sometimes possible to unscrew something like a flat screwdriver.

dual · Answer

It would be best to put a drop of cyanoacrylate glue, ie Droplet etc. on the end of the screwdriver, put it on the screw head, stiffen it until it hardens and wait until it sets completely. Before that, you need to degrease the gluing site. If you used WD40, for example, with a varnish solvent, because the bond will be too weak. A well-glued screwdriver tip should easily move and remove the screw. Then you just need to break it off and the screwdriver will still work after cleaning. The glue should not be applied too much, so that it does not drip beyond the metal and does not additionally stick the screw in the housing.

Anonymous · Answer

When using WD40, I would have some reservations if it does not damage or dissolve the plastic housing of the radio.

I can't unscrew the screw because it has deformed. What to do?

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