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5/8" X 24 TPI?
- Russell0331
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13 years 1 month ago #8973
by Akai
Replied by Akai on topic Re: 5/8" X 24 TPI?
YHM makes quite a variety of brakes in the Phantom series! if purchased for the .308 7.62 the thread size should be the same 5/8"-24 TPI otherwise it may be a factory mistake! Forgot to check but could also be metric or left handed. I would check the I.D of the bore and make sure you didn't get a brake for the .223 that would be a 1/2"-28 TPI If you don't have the proper tools (micrometer thread guage calipers) to check find a gun smith or machine shop, and I'm sure someone there could check it for you. The easiest way might be just to return it 
Really hard to tell with little info :pinch:
Really hard to tell with little info :pinch: Please Log in or Create an account to join the conversation.
- Russell0331
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13 years 1 month ago #8990
by Akai
Replied by Akai on topic Re: 5/8" X 24 TPI?
Well starting to get a little clearer now, did a search and did not find that part# on there site YHM-3080-5C2 is the new .308 #? and if your barrel has been cut and threaded again, you will have to check with a caliper! what's the O.D. of the thread measure on the barrel? If it's 5/8" or .625 then then 5/8-24 thread if it's (FAL) 9/16 or .562 Diameter the 9/16-24 or 1/2" .500 then should be the finer thread 1/2-28 these would be standard, again my friend hard to tell without all the info the more the better! We could also through in the metric 14-1.0mm left hand. Do some measuring and then we can make a decision on how to handle the issue
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- Russell0331
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13 years 1 month ago #8994
by Akai
Replied by Akai on topic Re: 5/8" X 24 TPI?
www.harborfreight.com/catalogsearch/result?q=Caliper
This is a inexpensive set.
You would need to measure the outside diameter of the threads on the barrel.
This will tell us the Major Diameter 1/2"=.500 9/16"=.562 5/8"=.625
A ruler or metal scale (ruler) or Caliper can be used to measure TPI or Threads per inch.
Count the land of the threads in 1 inch 24-28 ect. to determine TPI
This will determine thread size: 5/8"-24 ect.
Pictures really won't help at this time.
If your in a hurry take it to any local gun smith or machine shop and I'm sure they would be more than willing to help determine the size for you!
Yep, looks like you should have the right one if everything was original
This is a inexpensive set.
You would need to measure the outside diameter of the threads on the barrel.
This will tell us the Major Diameter 1/2"=.500 9/16"=.562 5/8"=.625
A ruler or metal scale (ruler) or Caliper can be used to measure TPI or Threads per inch.
Count the land of the threads in 1 inch 24-28 ect. to determine TPI
This will determine thread size: 5/8"-24 ect.
Pictures really won't help at this time.
If your in a hurry take it to any local gun smith or machine shop and I'm sure they would be more than willing to help determine the size for you!
Yep, looks like you should have the right one if everything was original
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- Russell0331
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