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  • Paul Alciatore
    replied
    Some Hits:

    http://www.mttusa.net/id448.htm

    http://www.n-ccarpet.com/Serging_yarn_order_form.htm

    http://www.fostercomfg.com/Catalog/Couplers%20Plugs.pdf

    I have several catalogs on lamps. I can not find any threaded lamp bases described as C21 or any other style that starts with the letter "C". There is a C21 that is a pin style socket, perhaps for fluorescents. It has no threads.

    Paul A.

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  • wierdscience
    replied
    Like so-
    http://www.diedrichdrill.com/specs/rodsp.htm

    I got a API standard thread casing chart,but nothing on drill pipe,or couplings.

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  • Col Mckee
    replied
    Drill rod; as in oil fields

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  • DR
    replied
    Huh????

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  • Col Mckee
    replied
    Drill rod

    Leave a comment:


  • CCWKen
    replied
    I think they use "C" series to designate light bulb thread. I have no idea what the specs are.

    Leave a comment:


  • mochinist
    replied
    Never heard of it, what is it on, or what does it go to?

    Leave a comment:


  • Col Mckee
    started a topic C21 Thread

    C21 Thread

    So...What is a C21 Thread? No guessing, please!
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