Thread identification

[veitnamcam]

9/16 24 kuz

It could be whatever depending on what gear the guy on the lathe decided to put it in, I have come across all manner of non standard threads.

[Gibo]

Couple of mine changed halfway

[Square22]

It could be whatever depending on what gear the guy on the lathe decided to put it in, I have come across all manner of non standard threads.

It's not 9/16x24 unfortunately as I have one of those cans that I was hoping it would fit. It's very tight and wonky if I try and force it on. The thread was done by gunworks so I'm hoping it's a standard size.

[csmiffy]

I always turn the major diameter of the soon to be thread a tad under-how much depends on the diameter of the thread.
They grow a little when you cut them so to speak, more noticeable when the thread is all but finished and it can get sharp.
The thread can be real close to your tolerance for fit but the top of the thread fouls the opposite test thread and you have to dress it back anyway.
Turning it a smidge undersize prevents that and loses feck all strength.

[Kiwi Greg]

9/16 24 kuz

I'm with you on this one

[veitnamcam]

It's not 9/16x24 unfortunately as I have one of those cans that I was hoping it would fit. It's very tight and wonky if I try and force it on. The thread was done by gunworks so I'm hoping it's a standard size.

I'm with you on this one

It could quite possibly be 9/16x24 but your can and barrel threads are different sizes, It is quite common to turn a thread until the part threading on just "fits" and threads on nice without looseness, which could mean your barrel thread tho the same pitch and "size" still wont fit.

Regardless without an accurate measurement of thread pitch as per above posts we are all just guessing at this point.

[Square22]

Calipers set to .5inch, does not line up, looks to be 13 and a tiny bit more threads to a half inch. It had a gun works maximus suppressor on it before and gun works did the thread, you would think those guys would have put some kind of standard thread on it?

[veitnamcam]

It looks to be 12 and a tiny bit....assuming your calipers are accurate.
Ring gunworks and ask them.
I'm going with x24 as above but a mismatch of diameter of can and barrel threads.....that is assuming that your can is definitely the thread you think it is.

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[Square22]

It is a DPT and printed on the side, I have tried it with an identical can and same result. Will contact them, cheers.

It looks to be 12 and a tiny bit....assuming your calipers are accurate.
Ring gunworks and ask them.
I'm going with x24 as above but a mismatch of diameter of can and barrel threads.....that is assuming that your can is definitely the thread you think it is.

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[Gibo]

I had two gunworks threads not fit dpt can without work

[Tommy]

Get the rattle gun on it

[csmiffy]

It could quite possibly be 9/16x24 but your can and barrel threads are different sizes, It is quite common to turn a thread until the part threading on just "fits" and threads on nice without looseness, which could mean your barrel thread tho the same pitch and "size" still wont fit.

Regardless without an accurate measurement of thread pitch as per above posts we are all just guessing at this point.

I agree but you would think that the suppressor is done with a standard tap or setting on the cnc.
Then its only the barrel that needs fitting but I spose if the suppressor is machined on a lathe there is always the chance they are different from batch to batch.

[Danny]

Knowing what I know re DPT and correct machine process standard ISO test nuts will always be used to check threading, even on a CNC there is the opportunity for Machining to be undersized or oversized due to wear, lack of lubricant heat or lack of etc, there are many variables and on that note it’s hard to do any better than accurately ‘guess’ what a thread is without seeing it accurately measured. I have plenty of thread gauges here happy to send out a couple...


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