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Thread: Thread Size

  1. #1
    Member seano's Avatar
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    Thread Size

    Can anyone confirm that these two thread's are the same ? I am planning on having a suppressor made but need to confirm prior(ill also send a email to the manufacturer confirming) .... Im currently going around in circles looking on the net to find out ..
    Thread my rifle have is "1/2 x36tpi" I want to know if this is the same "1/2 x36UNS" (which is the thread on the suppressor I want to fit) ...
    Cheers in advance

  2. #2
    Addicted puku's Avatar
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    http://www.gewinde-normen.de/en/unif...al-thread.html
    Looks like uns means unified special thread.
    And therefore the 1/2"x36uns has 36 tips per inch (tpi).
    So no it won't fit your rifle
    Rule 5: Check your firing zone

  3. #3
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    Are you sure its 1/2 x 36 as that's really fine?

  4. #4
    Member seano's Avatar
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    Thread on my rifle is 1/2" by 36tpi"
    This is the standard 9mm thread pitch for AR's
    Guess I need to confirm with manufacturer, that they can provide suppressor in my current thread size...
    or the email I received from them originally confirming taking on the work could just be a mistake ,as I gave them all my info .and they replied confirming order in correct cal ,colour ..but saying thread would be 1/236 UNS ...

  5. #5
    Addicted puku's Avatar
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    Oh sh*t sorry I thought I read your rifle was 1/2"x28tpi.

    Do yes I think it will be right.
    seano likes this.
    Rule 5: Check your firing zone

  6. #6
    Member seano's Avatar
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    I also got a reply from the manufacturer..
    "Yes that is correct, the 1/2x36 tpi (stands for 1/2" diameter, and 36
    threads per inch) and the 1/2x36 UNS is the thread designation which
    specifies the angle of the thread, however they both mean the same"

    So im sorted .... cant wait have it made and have it running on my rifle

  7. #7
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    I don't know what rifle rifle you have , but it would be me I would rethread with something more conventional and larger if there is enough meat on the barrel.

  8. #8
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    For factory subsonic , Fiocchi make a 158gr subsonic loading you can buy here in NZ , also for reloading maybe buy plated 158gr 357 bullets and run thru a 355 bullet sizing die .
    seano likes this.

  9. #9
    Member seano's Avatar
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    Quote Originally Posted by ChrisF View Post
    For factory subsonic , Fiocchi make a 158gr subsonic loading you can buy here in NZ , also for reloading maybe buy plated 158gr 357 bullets and run thru a 355 bullet sizing die .
    Have had a look around for the Sub's .. ill say ill get pack or two for a Nudge ,,,Can pick them up local at GunWorks .
    I have been keeping all my brass so ,intend to reload my own at somestage .. so thanks for the suggestions reg Sub Loading...
    Ive been shooting PMC and the rifle loves it ... Can anybody recommend somewhere to purchase x500, x1000, x2000 sort of amounts of decent ammo/Not to Dirty ?

  10. #10
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    With a thread that fine it is absolutely critical that the mating thread on the suppressor is either steel or stainless steel. Aluminium would strip out very easily and is only suitable for coarse threads.

  11. #11
    Member seano's Avatar
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    Quote Originally Posted by gundoc View Post
    With a thread that fine it is absolutely critical that the mating thread on the suppressor is either steel or stainless steel. Aluminium would strip out very easily and is only suitable for coarse threads.
    Suppressor specs
    Internal Components:100% 304 grade stainless steel
    External Components:304 L stainless tubingDiameter:1 1/2" (38.1mm)
    Overall Length:6.5" (165mm)Muzzle Extension:5.9" (150mm)
    Minimum Barrel Length Required:0.59" (15mm)
    Weight:14.1oz (400 gms)
    Thread Size "1/2x36 UNS / 1/2x36tpi"
    Ammunition Type:Sub-sonic or Factory High Velocity

  12. #12
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    You may want to look at ammo made by Belmont Ammunition in Wanganui , they have not bad prices if you buy in 500rd boxes etc , and also gives you brass to keep for when you reload etc .

 

 

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