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Thread: Thread identification

  1. #1
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    Thread identification

    Anybody know somewhere in Auckland I can get the thread identified on a rifle? I have a threaded Tikka .308 and the guy I bought it off didn't know what thread it was.

  2. #2
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    Post pictures wih a ruler beside it, probably someone on here will give it a good shot.

    Other option is to go to blacks and get a selection of nuts with different threads and see what works
    veitnamcam and Kiwi Greg like this.

  3. #3
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    Any precision engineering machine shop will be able to do it in a couple of minutes.

  5. #5
    Sending it Gibo's Avatar
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    I just send a picture to @veitnamcam

  6. #6
    Member northdude's Avatar
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    Where abouts in ak I'm on shore and could have a look is it at the muzzle end

  7. #7
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    On what? barrel end?

    Do you own a digital calipers?

    If so measure the OD and count how many threads per inch / 25mm there are. If you only have 10mm of threaded end how many threads per that dimension and tell us. From that we can look up the tables. If we also know what use then that is a cross reference. so 1/2inch OD 28 threads for say a 30cal rifle suppressor would be expected.
    veitnamcam likes this.
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  8. #8
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    Thanks guys Photos attached



    Name:  20180524_182511.jpg
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Size:  3.24 MBName:  20180524_182518.jpg
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Size:  3.23 MBName:  20180524_182612.jpg
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Size:  4.60 MBName:  20180524_182624.jpg
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Size:  3.64 MBName:  20180524_182852.jpg
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Size:  3.09 MB

  9. #9
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by steven View Post
    On what? barrel end?

    Do you own a digital calipers?

    If so measure the OD and count how many threads per inch / 25mm there are. If you only have 10mm of threaded end how many threads per that dimension and tell us. From that we can look up the tables. If we also know what use then that is a cross reference. so 1/2inch OD 28 threads for say a 30cal rifle suppressor would be expected.
    Yep that if you have calipers, measure od and measure the tops of the threads over as many as you can but say 5 or 10 to keep the maths simple.
    Rule 3: Load a firearm only when ready to fire

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  10. #10
    Member cambo's Avatar
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    Looking at that most likely its M14x1
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  11. #11
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by Square22 View Post
    Line the points of the caliper up with the tippy tops of the threads 10 threads apart and measure the diameter with the thick part of the caliper so you can hold it square without the caliper tips dropping into the thread on one side.
    Rule 3: Load a firearm only when ready to fire

    Chicken Intolerant.

  12. #12
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    Quote Originally Posted by cambo View Post
    Looking at that most likely its M14x1
    Mind you most threads don't usually measure over.
    veitnamcam likes this.

  13. #13
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    Holding the calipers with reasonably firm pressure

    Front of thread: (14.12 sorry for blurry photo)

    Name:  20180524_190140.jpg
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Size:  4.06 MB

    Back of thread: 14.15Name:  20180524_190221.jpg
Views: 126
Size:  3.29 MB

  14. #14
    Almost literate. veitnamcam's Avatar
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    Im thinking 9/16 x? need the tips of the caliper on the tippy top of the threads to get the pitch, set caliper to 1/2" and see if it lines up neat on ten threads.... then it would be 9/16x20
    Tommy and csmiffy like this.
    Rule 3: Load a firearm only when ready to fire

    Chicken Intolerant.

  15. #15
    Sending it Gibo's Avatar
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    Quote Originally Posted by veitnamcam View Post
    Im thinking 9/16 x? need the tips of the caliper on the tippy top of the threads to get the pitch, set caliper to 1/2" and see if it lines up neat on ten threads.... then it would be 9/16x20
    9/16 24 kuz
    Kiwi Greg and gadgetman like this.

 

 

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