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Broken machine head screw stuck in headstock. What to do?

Discussion in 'Tech-Talk' started by ryapou, Nov 29, 2017.

  1. ryapou

    ryapou Strat-Talker

    336
    May 28, 2012
    Germany
    Hello there,
    like the description says, one screw broke while putting on new tuning pegs.
    The screw broke at a point under the wood.
    Is there any chance to get the left half out of the headstock?
    Any advice is appreciated.
     

  2. jaybones

    jaybones Most Honored Senior Member

    Stew Mac makes this kit.

    I bought the extractor when I had a broken PG screw on an Affinity P bass, trying to fit an MIA PG to it. Since the screw was hidden behind the PG I didn't bother cutting a plug. Just filled it with wood putty.

    You might ask why I couldn't have left the broken screw in. Well it hadn't broken off flush to the body and would have made the new PG difficult to fit cleanly.

    You can also make your own with a piece of brass tubing with some cuts from a saw blade across the open end.
     
    Raiders757, ryapou and Thrup'ny Bit like this.

  3. Thrup'ny Bit

    Thrup'ny Bit Certified Curmudgeon Strat-Talk Supporter

    Age:
    58
    May 21, 2010
    In my own little world
    I've done this any times. You can file teeth into the tube quickly with a triangular file, it only needs a couple. Much cheaper that the Stew Mac option.
     
    ryapou likes this.

  4. vid1900

    vid1900 Senior Stratmaster

    Nov 25, 2016
    USA
    We use the Woodcraft screw remover, $11 USD.

    It comes with a few sizes, so you can get very close to the edge of the threads - for the smallest hole possible.

    124210.0.jpg

    To keep the bit from wondering (and possibly scratching up your guitar), first drill a hole through some scrap wood. Then clamp this scrap with the hole centered over your broken shaft.

    https://www.woodcraft.com/products/screw-extractor-1-4
     

  5. ryapou

    ryapou Strat-Talker

    336
    May 28, 2012
    Germany
    Thank You for your advices. Didn't thought of this method. Seems to be the smartest.
     
    Thrup'ny Bit likes this.

  6. The Ballzz

    The Ballzz Strat-O-Master

    990
    Feb 26, 2014
    LAS VEGAS , NV
    If you're going to make your own cutter out of brass tubing, I suggest that you get two sizes that just fit inside each other. That way, you can use the larger size to cut a plug, to fill the hole, out of a piece of maple.
    Just My $.02,
    Gene
     
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  7. vid1900

    vid1900 Senior Stratmaster

    Nov 25, 2016
    USA
    Always cut a hole that is a standard dowel size for easy repairs.

    Precut Maple plugs come in either end or side grain.
     
    ryapou likes this.