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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Advice to remove a "threaded" allen key screw
Hi there,
I have a very small allen key screw which screws into the bottom of my shower mixer unit to fasten the thermostat and control to the shower. I recently had some problems with the shower running colder than normal so following the advice of the manual (and this newsgroup) I took out the thermostat, flushed it and gave it a good clean, and reinserted it. Unfortunately this didn't work, and after a phone call to the manufacturers I got sent a new unit (can't fault the service btw, the company was Marflow). Now, the problem is that when I went to install the thermostat, I realised the screw's inside has become threaded, in that it is almost circular and not hexagonal any more. The allen key (which I suspect was probably slightly too small in the first place) just rotates in the socket. This "threading" happened when I rescrewed after trying the flush. I tried extracting with all manner of pliers, assuming I could get a decent grip and twist it out, but to no avail. Perhaps I screwed it in incorrectly. Anybody got any suggestions for extracting this screw? I thought possibly using a junior hacksaw to create a slot to use a normal screwdriver to screw it out. Would that work? Or would it just mangle the screw? Thanks, Dan p.s. Sorry if threaded is not the proper term... Perhaps someone could suggest a better one to help other people searching for similar problems. |
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