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Thread: 1 1/4" - 12 UNS ?

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  1. 02-07-2011, 10:18 AM #1
    weaston
    weaston is offline Registered
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    1 1/4" - 12 UNS ?

    I can't find the above listed thread type in the machinists handbook yet it is a thread which has been specified on one of our product drawings.

    Has the development team made an error by specifying a thread which doesn't exist?

    Thanks
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  2. 02-07-2011, 01:03 PM #2
    mrainey
    mrainey is offline Registered
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    The standard designation would be 1 1/4" - 12 UNF

    If the designer has specified dimensions that differ from the UNF standard, the thread could be considered 1 1/4" - 12 UNS (special).

    Close Tolerance Software
    Software For Metalworking
    http://closetolerancesoftware.com
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