Small item metalworking?

[Ducks]

I purchased a few bits from IKEA today for hanging some curtains, and unfortunately the metal supports for the curtain wire are a bit longer than I had realised. As a result, once they're attached to the wall, the curtain will protrude very far into the room (using them to hide an open, under-stairs storage). 

I am hoping to get them altered a bit, and was wondering if anyone would know anyone or anywhere that might handle this?

I've attached a photo of the assembled and unassembled versions for easier explanation.:

   

Essentially, the long spike part is 7.5cm, and I would like it to be about 3cm. This would necessitate losing the threaded end that you can see in the disassembled one, but I am hoping the two pieces could be soldered together post-chop to make one shorter piece which can then be attached to the wall.

Anyone know anywhere that might be able to do this for us? We're based in Caleta, but I could visit Rosario if need be.

[Ducks]

I definitely wouldn't solder them together. Rather cut it in two and make the thread again or drill a hole into the (shortened) threaded part. It looks like 10-12mm wide so you have pretty good chance to use the spiked part because any workshop would be able to cut a new M10 or M12 thread. The thread will be much stronger than any solder in the world.
I would walk into first car repair garage or ask a maintenance guy in your complex if you have one. I don't think it's necessary to go as far as Puerto.

Thanks for the insight about re-doing the threads! Didn't know if that would be possible without factory access.

Have a builder coming this week for something else, so I'lll ask him if he has access to something that can do it. 

Cheers!

[Cotillo_Tom]

Keep the threaded end and shrtens the rod by sawing off the other end. The end you saw off only has a hole and it is FAR EASIER to drill a hole than it is to cut a new thread!!

Tom.

[Spitfire58]

What about just cutting down the non threaded end to the length you want & re drilling through it, same as original. Only thing you would be missing is the pointy end but if it is the size Sam reckons then maybe use a 10mm copper blank end fitting to finish it off 

[Spitfire58]

Even if that is tha case then the copper “end cap” I suggested would cover this up !

[Ducks]

I think for now I am just going to mount them as-is into the ceiling and have a floor-to-ceiling curtain to hide the storage (rather than slanted along the side of the stairs). Will explore alternative options once I am home again and have more purchasing and alteration options!

Thanks, all; appreciate the variety and speed of responses.