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11/15/2010 10:46:38 AM EDT
... thread size? Got some chasing to do...  
11/15/2010 11:05:35 AM EDT
[#1]
Which end?
For the buttstock screw it is 1/4"x28.
11/15/2010 11:06:05 AM EDT
[#2]
1 3/16 -16 for the receiver end
11/15/2010 4:39:14 PM EDT
[#3]
Quoted:
1 3/16 -16 for the receiver end


Thanx! Now the search begins...

Sorrry Bruce, should have been more descriptive.

11/15/2010 5:46:14 PM EDT
[#4]
are you trying to fix the threads on the tube or in the receiver?
11/15/2010 6:02:40 PM EDT
[#5]
Tube.
11/15/2010 6:10:08 PM EDT
[#6]
sorry, can't help then...I have the big tap from doing 80% lowers but I don't have a die that size

and unless you can find someone to loan you one, you'll probably find it cheaper to get a new tube as a die that size will probably be in the $50-$60 range

ETA: are the threads so bad that one of those thread repair file wouldn't work?
11/16/2010 7:49:47 AM EDT
[#7]
Quoted:
thread repair file


Hadn't considered, that. That's why we all come here...  

It's a 3 position alum carbine tube and I'm not sure if it's repairable. I can't remove the castle nut. Have to give it a try though!


11/16/2010 8:01:29 AM EDT
[#8]
here's a link to some thread repair tools...the files aren't priced too bad
http://www.mcmaster.com/#thread-repair-dies/=9qu19w
11/16/2010 12:59:09 PM EDT
[#9]
I fixed the threads on an early buffer tube recently with a thread file. Just run the lathe in reverse and hold the thread file backwards so it pulls away from the shoulder rather than into it.

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