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Hard to find thread size

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  • kcleere
    replied
    Actually I think you got it...I looked at the matix on the thread plate and 7/32 shares a row with #12. I overlooked it. With the rod fully threaded in the plate there is "just" enough play that I bet it fits a 12 and would be a little tighter.

    The thread plate itself is cheap and run of the mill....I need to find a more reliable and accurate (thicker) one anyway.

    Thanks

    Originally posted by SDL
    If the thread form is 60 Deg then looks like #12-24 which is listed as 2 thou under 7/32, no 7/32 in machinery handbook on UNC coarse. If 55 Deg form then as per Sir John.

    Steve Larner

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  • kcleere
    replied
    What I'm measuring are threads of a rod threaded on each end and about 8+ inches long used to hold the end bells on a 40's era Delta 3 Phase motor.

    It fits the 7/32-24 threaded hole in my screw-checker plate and I've seen taps as shown above for this.

    I would hope someone didn't slip a metric rod into this thing over the last 70years and I didn't check it with my metric plate but guess I will.

    Thanks very much for the replies.

    Leave a comment:


  • SDL
    replied
    Originally posted by kcleere
    I need to find a source for 7/32-24 hex nuts and all the sources I know of don't even list that size.

    Might anyone know of a source? It seems like it might be the same as a #12-24?
    If the thread form is 60 Deg then looks like #12-24 which is listed as 2 thou under 7/32, no 7/32 in machinery handbook on UNC coarse. If 55 Deg form then as per Sir John.

    Steve Larner

    Leave a comment:


  • John Stevenson
    replied
    Norton tappet size.

    http://www.tracytools.com/tapsanddiesspecials.htm

    .

    Leave a comment:


  • saltmine
    replied
    I think he might be measuring the head of the bolt, Joe.

    7/32" head bolts are common in the automotive business for holding HVAC ducting and panels under the dash together. Most are 4MM or self tapping sheet metal screws.

    Leave a comment:


  • JoeFin
    replied
    Never heard of a 7/32

    6/32
    8/24
    10/24

    sure your not looking at a metric bolt

    Leave a comment:


  • kcleere
    started a topic Hard to find thread size

    Hard to find thread size

    I need to find a source for 7/32-24 hex nuts and all the sources I know of don't even list that size.

    Might anyone know of a source? It seems like it might be the same as a #12-24?
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