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jkool702 t1_iu7lkf4 wrote

Reply to comment by vesati in How can I remove a headless screw from a shower valve? by foootrest

A modified version of this approach works really well actually

  1. drill out the center of broken screw

  2. find a screw with a sharp point tip that is about the same diameter as the screw you just drilled

  3. screw this new screw into the hole you drilled into the broken screw

  4. let it sit for a few minutes. As it cools off (from the heat caused by friction from screwing in the screw) it should lock the 2 screws together

  5. slowly unscrew the new screw. The old broken one should come with it.

If this fails you can also drill it out and tap a new hole with a slightly larger thread and use a slightly larger screw. Just hope that the tap doesnt break off in the hole....getting a broken screw out is childs play compared to getting a broken tap out of a half-threaded metal hole

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