"Duane Bozarth" wrote in message
...
Harry K wrote:
...
Yes. If he needs it threaded at both ends the threads turn different
directions...or does it?...hmm, damn, now I have to go looking in my
junk pile for a pipe threaded both ends.

If that were true, you'd have one r-h and one l-h thread...somewhat
inconvenient at best...

The taper would be a possible problem though as it would be tougher to
get a leak-tight connection.

Not a problem most taper thread dies will cut "Running" threads on the pipe
if you cut a longer threaded section, and then on to the very end of the
threads it will be tapered ( taper length on 3/4" pipe is about 5/8" ) So
just tell them to stop the cutting where you would have ended for the
distance between the threads on the 3.25" nipple i.e. about 2"

William...