On Aug 11, 1:23*am, Terra Arcane wrote:
On Wed, 11 Aug 2010 05:07:34 +0000 (UTC), Brent wrote:
If that's right, the tap and die size for GHT would be:
O.D. 1.0625 at 11.5 threads per inch

Wikipedia concurs at an outside diameter of 1.0625 inches and a pitch of
11.5 tpi *(http://en.wikipedia.org/wiki/Garden_hose) but
rec.crafts.metalworking say it's O.D. is 1.031. and has 11.5 TPI.

Early in April of 2004, the folks at rec.crafts.metalworking had some
information but not enough (http://tinyurl.com/az4p9). They concluded
nobody makes taps and dies for garden hose thread, I believe.

"A garden hose connector has a nominal size designation of 1 inch, the
actual O.D. is 1.031. and has 11.5 TPI. * *1.031 is real close to the O.D.
of 3/4 inch pipe (1.050) but 3/4 inch pipe is threaded at 14 TPI. *1-inch
pipe has an O.D. of 1.315. and has 11.5 TPI. *So it looks like straight or
tapered isn't the problem, no pipe die is near the correct size."

and

"Hose coupling threads do not match any standard NPS or NPT thread.
The pitch diameter (0.9875"-1.0060") is almost the same as 3/4"-NPS
(0.9820"-0.9873"), but the 11.5 TPI pitch matches 1"-NPS, not
3/4"-NPS (14 TPI)."

and

"The thread spec. for garden hose fittings is ANSI/ASME B1.20.7 (see
Machinery's Handbook) and the designation is NHR" 1-800-993-4353 (Field
Tool Supply).

Those at misc.consumers.frugal-living found a freely available tap and die
set but I can't seem to find their link anymore.http://www.craftkb.com/Uwe/Forum.asp...3/Tap-Die-for-...

"If you mean garden hose, the proper designations a

*.75-11.5NH (cut, formed, or rolled)
*.75-11.5NHR (thin wall formed)

However, I don't see how you could make these with just a tap or die,
as they involve a pilot, a relief, and a different lead-in thread angle,
not just threads. Google ".75-11.5NH tap die" = 0 hits."

http://www.widell.com/popular%20spec...2004-09-01.pdf

Scroll down to 3/4-11-1/2. You will see a garden hose size tap listed.
Don't know about the die though.