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  • 1 Post By zimmer

Thread: thread size

  1. #1
    Member Pengy's Avatar
    Join Date
    Sep 2012
    Up in da hills somewhere near Nelson

    thread size

    Is there an easy way to find out the thread size on a barrel without specialist tools?
    Idiot proof replies please.

  2. #2
    Member northdude's Avatar
    Join Date
    Apr 2013
    north auckland area
    thread a die onto it and see what it says it is

  3. #3
    Join Date
    Jun 2012
    lower hutt
    Measure the outside diameter and check the thread pitch with some thread guages

  4. #4
    Member zimmer's Avatar
    Join Date
    Oct 2012
    To get the thread pitch -
    Hardly anyone has thread pitch gauges. So, just measure across the maximum number of thread peaks available, count the number of peaks, subtract 1 peak, divide this into the first measurement. Then divide that answer into 1 and that will give you the thread pitch per inch, or do the whole lot in metrics which is easier if it is a metric thread.
    Pengy likes this.

  5. #5
    Member zimmer's Avatar
    Join Date
    Oct 2012
    You can do a quick check by just measuring across 2 thread peaks but the chances of making an error are greater than the counting several and measure method. Need to use a magnifying glass if measuring just 2 peaks and the thread is fine - barrel threads are not.



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