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Tru-Pos Locators UNJF thread

John Riggins
Need to measure some threaded holes 1/4-28 UNJF.
Anyone know where I can find plugs for this thread to check location?
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  • what kind of material were you cutting nuguy?
    we are in the medical industy and thread milling titanium for an implant with no raised edges , frayed edges, etc
    and as i stated in an earlier thread we are checking the threads with the pitch function to a tolerence of .002" true postion
    prior to trying i would not have believed it myself.
    it has been very successful for about a year checking 32 parts a day
    nothing succeeds quite like happy numbers. extrapolate that .002 out .003, then .004, then..... chances are, that dim is over-toleranced if the part in question still works as intended. In the case of threaded holes, if your downstream customer is happy, then everyone leaves the playing field a winner.... Rolling eyes
    and (as mentioned above) while most places might use a tap? we cannot. We cut some pretty funky (proprietary) 'J' threads and I can tell you that it's no fun inspecting them. Usually split with EDM and handed off to the OGP Sunglasses
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  • what kind of material were you cutting nuguy?
    we are in the medical industy and thread milling titanium for an implant with no raised edges , frayed edges, etc
    and as i stated in an earlier thread we are checking the threads with the pitch function to a tolerence of .002" true postion
    prior to trying i would not have believed it myself.
    it has been very successful for about a year checking 32 parts a day
    nothing succeeds quite like happy numbers. extrapolate that .002 out .003, then .004, then..... chances are, that dim is over-toleranced if the part in question still works as intended. In the case of threaded holes, if your downstream customer is happy, then everyone leaves the playing field a winner.... Rolling eyes
    and (as mentioned above) while most places might use a tap? we cannot. We cut some pretty funky (proprietary) 'J' threads and I can tell you that it's no fun inspecting them. Usually split with EDM and handed off to the OGP Sunglasses
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