Anyone know what type of nut is needed for an Irwin pipe bender?

[Mary__]

My Irwin pipe bender has lost the retaining nut for the central bolt and the 12mm we have on site aren't the right pitch.
Does anyone know what type of 12mm nut to get?
Irwin don't, I've asked.
No replaceable parts on their benders.

 

[Timmy D]

If Irwin can’t help, I doubt someone will know from memory.

You either need a tap/die set in m12 and then line up the different pitches to figure it out. Or if you don’t have a set, hope someone on here does and the same bender.

I’ve got the set, just not the bender.

I’d just order a nut for each pitch, there’s not many. Most common in m12 is coarse thread - 1.75 and fine thread - 1.25.

However, you can get 1.0, 1.5, 2.0 etc.

If you can’t test, find a thread that goes into the nut you have and then line it up with the bender thread. If you know your nut pitch, then you’ll know if you should go coarser or finer.

Or just order one of each I’ve listed.

 

[Mary__]

If Irwin can’t help, I doubt someone will know from memory.

You either need a tap/die set in m12 and then line up the different pitches to figure it out. Or if you don’t have a set, hope someone on here does and the same bender.

I’ve got the set, just not the bender.

I’d just order a nut for each pitch, there’s not many. Most common in m12 is coarse thread - 1.75 and fine thread - 1.25.

However, you can get 1.0, 1.5, 2.0 etc.

If you can’t test, find a thread that goes into the nut you have and then line it up with the bender thread. If you know your nut pitch, then you’ll know if you should go coarser or finer.

Or just order one of each I’ve listed.

Thanks very much, I'll get one of each!
Once I know which one it is I'll get some spares.