On 29 July 2016 at 02:49, Gene Heskett <[email protected]> wrote: > There does appear to be a flat on > the tip, perhaps a thou wide.
Should there be? What exactly, is this tapered thread? Note that in the US there is a flat on the thread, but the flat size is modified to eliminate the spiral leak path: https://en.wikipedia.org/wiki/National_pipe_thread In the rest of the world the thread-form is Whitworth, with rounded peaks and troughs: https://en.wikipedia.org/wiki/British_Standard_Pipe To add to the fun, one is 60 degrees and the other is 55 degrees. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
