The male ends of many of my garden hoses have become somewhat chewed
up and I want to re-thread them properly. I have looked in my Mc
Master-Carr catalog under Die and GHT (Garden Hose Thread) but there
is no listing for the proper die .. either re-threading or primary. I
am sure that it is there under the proper size & pitch but I do not
know what that might be. Any and all help would be appreciated.
Save yourself the trouble. At some hardware stores & garden centers, I've
found plastic replacement ends that are very rugged. I don't recall the
brand name, but it's one of the makers of sprayers & other hose accessories.
Green plastic - easy to spot on peg hangers. You cut off the metal end, and
insert the replacement into the hose, which is a bitch unless you spit on it
or apply just a little silicone spray or something similar. Then, you attach
the supplied clamps around the outside of the hose. I've got 20 year old
hoses I've fixed this way and the threads are still in good shape.
Buy extras when you find them.
Yep, replace the ends. Before heading to the store be sure to know the
inside diameter of the hose - cut off the old end about an inch back and
take your measurement. For an easy and safe-for-hose- material lubricant
use some PAM (petroleum grease may breakdown the hose). Spit doesn't
stretch very far and you may find yourself with the new end halfway on and
stuc right there. Not fun.
Brand name is usually Gilmore. AND THEY ARE MADE N HE USA< TOO< not
China. Come from Pennsylvania, I thin.
I use a pour of cooking oil, (corn, canola, olive, whatever) to lube the
inside of he hose. Dip finger in il, liberally coat inside of ose, put
more oil n plastic barbed insert and isert.
Thanks for the two replies. I have quite a few of those replacement
ends .. both plastic and brass. HOWEVER !!! The internal surface of
my hoses are hexagonal in shape .. not circular. Regardless of what
type of repair product I use and regardless of how tight I clamp down
.. they LEAK. I am 70 years of age and have been playing "repair the
hose" most of my life with great success. These hoses just do not
accept the repair "kits".
So, once again .. any idea of where I can get a re-threading die?
The threads do not seal the hose, only the gasket inside.
If screwing them together is what is rough and difficult, wire brush the
male and female ends, them polish them with a little automobile wax.
If fresh gaskets do not seal the connections, you need new ends or a new
Here is a fairly accurate (but not completely) rundown of threads for
this link has better (IMO) / overlapping descriptions
the problem lies in that not all pipe thread is tapered, some is
garden hose thread is a slightly different animal (straight thread)
larger OD than 3/4 pipe AND coarser thread!
even more thread info..............
To answer Norm's orignal question........
I struck out finding an "off the shelf" soultion
even at MSC.com (lot of special threads) I couldn't find it
you could give these guys a call, they might have it
If you've just gotta have one.........you could have it custom made
http://www.widell.com/ these guys had the GHT tap stock, but not the
Even better yet, go to Sears and buy one of their 'Craftsman' logo life
time guarantee hoses. They're black, possibly real rubber, available in
if I recall correctly, 50 and 75 foot lengths, and have beefy for real
machined brass couplings... not the flimsy stamped sheet metal ones like
most hoses today.
Check the packaging and make sure it has the 'Craftsman' logo and
lifetime guarantee info on the packaging, as not all Sears hoses are
They initially cost a few of bucks more, but unless lost or stolen, will
be the last hose you buy. Sears is great about replacing worn
out/damaged hoses without question, no receipt required! Through the
years I've probably taken back 5 or 6 for various reasons... including
one the gardner damaged with his mower. (I outright told them the reason
for the damage to this one, and they still replaced it on the spot!)
The downside is they tend to rub what appears to be black oxidized
rubber material off into your hands once they get to be a a few years
old, but for the most part said material seems to flush off easy with
just a little water.
Hose tip... if you coil your hose up on the ground, and space
permitting, try laying it out in a figure '8' pattern. So stored, you
can pick up the end, and pull the out hose full length kink free! Just
keep the end from dropping through any of the figure eight end loops...
I believe you will find it far easier to install a new hose end. The
one shown at
is probably your best option as it does not require an external clamp to
hold it on the hose.
"people willing to trade their freedom for temporary security deserve
Garden hose threads are ANSI/ASME standard B1.20.7.
The designation is:
.75-11.5NH (cut, formed, or rolled), or
.75-11.5NHR (thin wall formed).
See _Machinery's Handbook_ 26th edition, pp 1841-2.
I can't seem to find any sources for taps or dies, either.
On Sun, 27 Aug 2006 22:05:48 -0500, Richard J Kinch
THANKS to all for your replies. I did locate a die at
www.tapcousa.com by using their 800 number and giving them the above
specs. They have two in stock which I left there since they wanted
$136.00 plus shipping to be relieved of one of them.
As someone mentioned, I can replace all my hoses for that amount.
I do have a standard pipe re-threading set and used its file with the
#12 grooves and it worked quite well but left a rough finish. I
smoothed it out a bit with the wire brush I use on my BBQ and it ended
up looking good. The problem I had before all this was that it would
not screw into my plastic quick-disconnects without serious binding.
All is well now helped a bit by silicone grease.
For those interested I did find an external threader (11.5) in the Mc
Master catalog but it was $89.00. A bit better than $136 but still a
Again .. thanks to all.
Pretty cool / useful tool at McMaster
Replaceable Die External Thread Restorer 2630A12
Tool comes with dies for thread sizes 4, 5, 6, 7, 7 1/2, 8, 9, 10, 11,
11 1/2, 12, 14, 16, 18, 20, and 24 threads per inch.
OD range is 1 1/4" to 5".
but even a tool junkie such as I wouldn't buy one but I could see the
need for such a tool where LOTS of hose were in use. One could chase /
clean up the ends faster & cheaper than replacing
It would require a heck of a garden hose w/ 1-1/4" OD minimum!!! :)
But even if it went to the 3/4" OD, garden hose ends are still thin
wall formed, not cut and not as deep as pipe thread. An NPT die of the
same diameter would cut through or nearly through the root diameter of
a formed NH thread.
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