5/8 -18 UNF and 5/8 - 24 UNEF

[Gunny bedford]

5/8 -18 UNF and 5/8 - 24 UNEF is there a difference ? looking to buy a moderator for my .308 it used to have a muzzle brake that had a 5/8 - 24  UNEF bushing on it to fit onto the threaded barrel, if i get a mod with 5/8 18 UNF will it fit my thread ?

thanks

Neil

[jcampbellsmith]

32 minutes ago, Gunny bedford said:

5/8 -18 UNF and 5/8 - 24 UNEF is there a difference ? looking to buy a moderator for my .308 it used to have a muzzle brake that had a 5/8 - 24  UNEF bushing on it to fit onto the threaded barrel, if i get a mod with 5/8 18 UNF will it fit my thread ?

thanks

Neil

No, it won't fit. 24 means 24 threads per inch. 18 means 18 threads per inch. The difference is that the pitches are different. The thread diameters are the same as both are 5/8 inch, but UNF and UNEF are only two of many possible threads.

Regards JCS

[Gunny bedford]

Thanks