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Thread size and type

Discussion in 'Plumbing and Central Heating' started by MickyP10, 23 Oct 2021.

  1. MickyP10

    MickyP10

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    Anyone know the type and size of thread for the small screw in pic below?

    I want to order some to replace the ones the previous owner has painted over. Don't think they're metric.

    Thank you!


    20211023_104618.jpg
     
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  3. fixitflav

    fixitflav

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    Why not? At a guess I'd say M3, but you could take a sample to a hardware shop.
     
  4. MickyP10

    MickyP10

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    I would if I had a decent local hardware shop!
     
  5. fixitflav

    fixitflav

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    Ignore, replied to the wrong post.
     
  6. fixitflav

    fixitflav

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    Where would you get them from if you knew the spec?
     
  7. MickyP10

    MickyP10

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  8. fixitflav

    fixitflav

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    OK good luck!
     
  9. MickyP10

    MickyP10

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    Anyone?
     
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  11. fixitflav

    fixitflav

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    I doubt that anybody can tell you just from the photo. But you could measure the diameter and thread pitch, and try to identify it from on-line data.
     
  12. JohnD

    JohnD

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    you need to measure them, very accurately.

    Also, measure the length of the threaded part, and count the number of threads on it.

    None of us can do it from here.

    you can post a close-up of it against a steel measure if you want.

    unless it is very old, or American, the thread is most likely to be metric.

    edit
    just too slow!
     
  13. MickyP10

    MickyP10

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    Ah ok, I thought they were all pretty standard, like the radiator threads, etc.
     
  14. SFK

    SFK

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    Last edited: 23 Oct 2021
  15. johnny2007

    johnny2007

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    Measure with a caliper.
     
  16. SFK

    SFK

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    Hang on a second, why not simply put in a small pot of paint stripper or meths to get the paint off (not too long or it will start to corrode)?
    And if needed then give a light sand or polish.
     
    Last edited: 23 Oct 2021
  17. MickyP10

    MickyP10

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    Thanks all. Apparently it's M5, so off to ebay I go.

    EDIT: Ten stainless ones for under £2!
     
    Last edited: 23 Oct 2021
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