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Can someone please help identify this grub screw type?

Discussion in 'Tools and Materials' started by devs, 13 Jun 2021.

  1. devs

    devs

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    An American industrial machine.
     
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  3. JohnD

    JohnD

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    So start with 1/4" UNC. Knowing the age of the machine will help.

    For speed, you don't need to order a grubscrew, any screw will suffice to check it fits.

    If it doesn't, you can compare it to see how close it is, which will narrow down your search.

    A precision measuring device will help.

    It is rather difficult to count tpi on such a short screw.
     
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