How to make a complete square/rectangle with galv conduit

[1974stephen]

I've never used galv conduit before, and wondered if there is a trick to creating a complete square or rectangle using four angle boxes. Is there a way of getting the fourth corner joined up with a special reverse thread nipple or something, or is it just not possible?

I was thinking of using it as a cheap way of creating the frame for a fruit cage on my allotment, as plastic is just too bendy.

 

[Taylortwocities]

You are trying to create something with materials that are no made for the purpose.

Nobody needs a reverse thread on a galvanised conduit installation. Although you could cut one by hand using a die, but then you'll need a reverse thread bend for it to screw in to.

How about using a slip coupling in the middle of the fourth side?
Have some fun on Google, you'll find something…

 

[AlanE]

I was thinking of using it as a cheap way of creating the frame for a fruit cage on my allotment, as plastic is just too bendy

Copper pipe with solder elbows?

 

[sparkwright]

A RUNNING COUPLER!

Not go to college?

 

[Taylortwocities]

Could you let us know where your allotment is, I'm off to the scrap metal guy most weeks….

 

[JohnW2]

I was thinking of using it as a cheap way of creating the frame for a fruit cage on my allotment, as plastic is just too bendy

Copper pipe with solder elbows?

.. or with compression fittings, which would make for ease of transport and possible dismantling etc. However, I do wonder whether any of these approaches would work out 'cheap' in comparisons with things made for the job. I've wasted a fair bit of money in my time by (incorrectly) believing that I could fabricate something out of components rather than buying the ready-made thing!

Kind Regards, John

 

[Lectrician]

RUNNING COUPLER.

Thread the conduit to a length just over a coupler. Thread a lock ring and coupler up the conduit. Place a nipple in the conduit box. But the conduit to the nipple. Thread coupler down over the nipple. Tighten lock ring against coupler. Galv spray or black paint over exposed thread left.

 

[1974stephen]

Thank you all. The running coupler is what I need, which after typing it into google makes me realize that it's no different to a 'normal' coupler, it's just that little bit of knowledge about how to use one with a lock nut that I was missing.

Fruit cages are well over £100, and with a 3.7m length of conduit for less than £6 plus a few boxes for £1.50 each, I can't see how I can lose, especially as I will be able to make mine to a completely bespoke size!

 

[RF Lighting]

Have you got a pipe vice and conduit threading dies?