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  1. #1
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    Oct 2011

    Why is this audi a3 alloy stud diameter not right!

    Got some audi a3 15" pepperpot alloys and the stud diameter should be 5x100, i measure mine according to how you are supposed to measure them and the measurement is 102-103mm which don't make sense to me or am i missing something, any help appreciated.[IMG][/IMG]


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    Broken Byzan's Avatar
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    the measurement isn't done straight across, it's done in a radius, so measure sort of around between holes.

    Pitch Circle Diameter = PCD

    PCD and Offset explained

    Measure the distance X between the centres of 2 ADJACENT holes and multiply by 1.7012
    Last edited by Broken Byzan; 28th October 2011 at 22:28.



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