It's similar to a bolt and a screw. It's used to lock two sliding cabinet doors together. I don't know the name and I've searched for various combinations of words, but can't find anything. Please help.enter image description here

  • I don’t know what they are called but some of my lock out devices have that type screw you run it down and fold it over then put a lock on it can’t be unscrewed she folded over
    – Ed Beal
    Mar 9, 2022 at 5:14
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    Locking screw? But go back to the maker of the cabinet, they may offer spares.
    – Solar Mike
    Mar 9, 2022 at 6:13
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    Close to a special type of toggle bolt (not the all anchor type) :i5.walmartimages.com/asr/… Mar 9, 2022 at 20:42
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    Unscrewed She Folded Over - good title for a romance novel. @EdBeal
    – Mazura
    Mar 9, 2022 at 23:14
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    I propose that it doesn't have a name. "Folding Thumb Screw" (credit @sxx) seems as close as you'll get ... you'll find various finger-operated screws with heads that flop or fold out of the way. But to find one that looks just like this to match others in the same piece of furniture use you'll probably need the manufacturer and part number, not a generic name.
    – jay613
    Apr 8, 2022 at 14:13

2 Answers 2


Shoulderless thumb screw ? At least it has same top



Folding hand turn bolt


Folding butterfly bolt / wingbolt


  • None of the examples are the same as the op provides, good try though.
    – Ed Beal
    Mar 9, 2022 at 20:11

That there looks like a tuning peg for a guitar. Used to tighten the strings.

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    This does not provide an answer to the question. Once you have sufficient reputation you will be able to comment on any post; instead, provide answers that don't require clarification from the asker. - From Review Apr 18 at 21:04
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    Ummm yes it does answer the question. The question was "What is this screw-bolt officially called" and the answer is "tuning peg" Look it up. that is the name of it. I answered the question directly. You need to remove your comment and the negative you gave me for my answer. Apr 18 at 21:30
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    Are you saying "looks like" as in "resembles" (which I suspect is how the downvoters interpret your answer), or "looks like" as in it actually seems to be a repurposed tuning peg? I haven't studied guitars in any detail, but I've never seen a tuning peg that folds. It's also longer than the tuning pegs you link to, at least for the same diameter (which the OP should have provided in numbers)
    – Chris H
    Apr 19 at 8:31
  • I said "looks like" because there is no exact way a tuning peg is designed. It's not like a tapcon, hex cap screw or socket cap screw where they look identical no matter the manufacturer. There are literally 1000's of different variations of the tuning peg and they are not identical in appearance. This is why I said "Looks like" May 10 at 3:33

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