Cut threaded rod - how do I save the thread?

[Thomas_Blekinge]

I'm cutting threaded rod with an angle grinder. The thread becomes so bad that it's not even possible to screw on a nut. What should I do? I've tried filing conically, or around, or screwing on a nut before cutting and cleaning the thread with that nut, but nothing is really good. Is there a shortcut?

 

[Kane]

Use a gang cut instead of a nut.

 

[Thomas_Blekinge]

Sure, I thought about that too. But I don't want to invest in yet another tool for one-time use.

 

[Kane]

Of course, I thought about that too. But I don't want to invest in yet another tool for one-time use.

Then you'll have to show your tool-making skills and use a triangular file. With such a tool, you can fix damaged threads.

 

[nino]

Usually grind it slightly tapered and a nut beforehand, then it usually works

 

[Fotografen]

Adjust with a regular file afterwards, study the thread start on a standard screw and file it the same way.

 

[KnockOnWood]

It should go better with a hacksaw instead of an angle grinder.
The hacksaw doesn't heat and deform the thread as much.

And of course, put on a nut first

 

[Campar]

Cut with a hacksaw instead, it's a bit gentler.
File away the sharp edges lightly,
Of course, have a nut on it first, unscrew it almost completely and then back a couple of times.

It usually isn't a problem after that.

 

[Fotografen]

Sure, hacksaw is easier but if there are many and thick cuts then angle grinder is faster.
I've never had a nut on before, still works.

 

[Daniel 109]

It is possible to grind off the burrs with quite brutal methods. Angle grinders generally work well. But you have to grind in the right direction.

 

[Jarlingar]

What is the thread?

Grind at 45° and about one-third around, meaning the remaining top is about one-third of the diameter.

The easiest way is to roll the rod against the cutting disc.

Can't fail.

 

[Thomas_Blekinge]

Thanks, boys, for all the happy tips. It's important to keep working. There are no shortcuts. I need to make 20 cuts, so I was considering a super simple method.

 

[Nils82]

You put on the nut before cutting. Then when you remove the nut, it "smooths" out the thread. Always works!

 

[nino]

Thin cutting disc is approximately 1mm

 

[Husqvarna220Ac]

Can't you screw the nut on the other side of the rod and thread it all the way through and out on the other side? You have to "read" the threads and see how the groove goes and sand, or use a thread file, available cheaply at biltema..