I'd cut off the old fittings and replace them with new ones. The guy
at OSH should have explained this, as they have about a half dozen
styles. Everything from cheapo plastic fittings that require only a
screw driver to more elaborate commercial types which require a tool
to crimp a permenent steel band around a barbed brass fitting. IOW,
if the hose is worth saving, toss the old fittings for new ones
...unless you want to hang the old ones on the wall in your den and
It looks like a tap and die don't exist at a reasonable price for 3/4 inch
diameter, 11.5 threads per inch or 12 threads per inch (i.e., less than say
$25 or $30 bucks).
It looks like a thread file doesn't even exist for 11.5 threads per inch or
for 12 threads per inch.
Therefore, if the threads are bent and worn, there is apparently no
(reasonable) way to clean them up except with a small triangular hand file.
There is no ready-made purpose-built solution other than to replace the
Bummer. I was hoping to find a reasonably priced tap and die or thread file
that fits the garden hose thread (GHT).
On Thu, 05 Aug 2010 07:45:10 -0400, willshak wrote:
In summary, there is no specific cost-effective tool to clean up brass
garden hose threads.
Most people use a wire brush and/or a triangular file to clean up dirty
and/or buggered threads respectively.
There is a rather expensive $125 tap (http://tinyurl.com/2wv9x3t ); but
nobody knows of a die for a garden hose thread (GHT ?).
Also, the tap seems to have a "plug" and a "bottom", whatever that means:
The problem in getting a tap and die (besides the cost) is that most people
seem to be wrong on the size, which seems to be (if I'm right):
Right Hand National Hose thread 3/4" at 11 1/2 TPI NH (but what is "bottom"
Note: I'm not sure what the "NH" means nor what the "Bottom" means nor what
"GHT" is since it's not in the specifications and nobody else seems to know
much about the threads.
As a complete aside... a plumber's brush for cleaning up copper 1/2" and
3/4" pipes for soldering is also just the thing for cleaning your
typical automotive bulb sockets when they get rusty.
(BTDT on more than one "barn car")
replace "roosters" with "cox" to reply.
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