Reply To: Old and unusual screw sizes

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September 29, 2021 at 10:18 pm #247500
Buccaneer
Participant

    US Member

    Joe, I should have thought about the pipe thread possibility!
    The specs I found are pretty close to what I have…….

    Nominal Pipe Size (inch) – 1/8″ NPT
    No. Of Threads Per Inch – 27
    Outside Dia. (inch) – 0.405

    Prepare to be boarded!