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Thread: Positional Tolerance of FHCS's???

  1. #1
    Associate Engineer
    Join Date
    Mar 2017

    Positional Tolerance of FHCS's???

    How would you treat a FHCS (flat head cap screw) as far as positional tolerance goes?

    Would you treat it like any other screw or would you treat it more like a dowel pin because of the countersink that acts as a locating feature?

  2. #2
    Technical Fellow Kelly_Bramble's Avatar
    Join Date
    Feb 2011
    Bold Springs, GA
    Treat the threads and the countersink feature just like an ordinary thread tolerance structure.
    Tell me and I forget. Teach me and I remember. Involve me and I learn.

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