hosepipeplumbing
Is a US garden hose connector any kind of standard pipe thread? So that it could be screwed into a normal, say, threaded iron or PVC pipe?
I've tried a couple samples of what I had on hand and though the thread may start it doesn't really want to go on.
You could cut off the threaded adapter so you have plain copper pipe, then push on a Shark-Bite cap (they're about $6-8 at most home centers or hardware stores).
Otherwise, a stainless steel cap could be used if you're having a hard time sourcing an affordable brass threaded cap.
They make the same type of bushing that you used before, but in PVC. It would be called an 1 1/2" x 1/2" slip x FIP bushing. "FIP" means female iron pipe.
This picture is actually 1" FIP, which will be easier to find than 1/2", and also easy to "bush" down to smaller sizes using threaded brass bushings:
Best Answer
No, a US garden hose thread is its own thing.
This table has a useful comparison:
Note that the hose thread (called "GHT" in plumbing circles) clearly does not match ANY of the other thread specifications in this table of common sizes. I circled some table entries with the closest dimensions to GHT just for emphasis.
Though it's "3/4" diameter is nearly the same as several others, the threads-per-inch are quite different.
I suppose that the designer wanted it to screw on with fewer turns, hence the low TPI count for the common 3/4 size. Maybe this makes manufacturing tolerances easier also.
So the only way to make a screwed-together attachment is to use an appropriate spigot, bibb, or adapter.