Does anyone know the proper thread pitch for the CZ-858 rifle muzzle break?
I am also looking for the thread pitch for the Canadian C6 flash hider. (Mag 58)
Any help would be greatly appreciated.
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Does anyone know the proper thread pitch for the CZ-858 rifle muzzle break?
I am also looking for the thread pitch for the Canadian C6 flash hider. (Mag 58)
Any help would be greatly appreciated.
OK... CZ858 and VZ 58's are M14x1 RH.
Anyone... CF armourers..... MAg 58 thread pitch for flash hider???????
I'll check and get back to you all...
Thanks gunasauras... here is what I found out...
A buddy contacted FN Herstal-USA (FNH-USA) about the M240 GPMG threads and received this reply today.
Quote:
M240 Barrel thread pitch is English non-standard. The call out is (25/32) 0.7812-24 UNS-3A Special. So while the pitch is a standard 24 threads per inch, the diameter is non-standard.
I hope this helps!
Bob Ailes
Customer Support Manager
703-288-3500 ext. 122
roberta@fnhusa.com
The term "Special" may mean that either the major diameter or the root diameter or both have been modified from what you might calculate for a normal 24 TPI thread.
it's difficult to tell as only a professional knows this type of specifications.
but will get back to u wid these soon..
The obvious answer would be that the major diameter is non-standard, or am I missing something? Just about all non-metric firearms threads are "special", much to our consternation!
I think it would be simpler to rethread than that worry about a difference.
I needed to make an adapter... it worked...
https://www.milsurps.com/images/impo...IMG_0911-1.jpg
https://www.milsurps.com/images/impo...IMG_0915-1.jpg
https://www.milsurps.com/images/impo...IMG_0916-1.jpg