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  1. #1
    Join Date
    Jan 2018
    Posts
    13

    metric threads

    What do the letters "G" and "H" designate in regards to a metric thread? ex: M12x1.25-6H... Is this the same as "A" and "B" (male and female?). Thank you.

  2. #2
    Join Date
    Apr 2015
    Posts
    170

    Re: metric threads

    It is a tolerance symbol

  3. #3
    Join Date
    Jun 2015
    Posts
    4154

    Re: metric threads

    M12x1.25-6H
    hi, a bit late, but i just saw it : that is a "mother" thread; if you need factory infos about tread tolerances, iso profile deviations, tooling tolerances, etc, i can help / kindly
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

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