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Thread Protectors - Just will not stay tight.

Posted: Wed Feb 26, 2014 6:27 pm
by KSmoker
So now I have a few threaded barrels and while my 22 hosts have proven to be a non-issue as both have a large shoulder they lock up to. Every one of my centerfire pistols will not keep a thread protector on. Does anyone have a good option that wouldn't gunk up the threads? (aka no teflon tape or loc-tite please)

Re: Thread Protectors - Just will not stay tight.

Posted: Wed Feb 26, 2014 6:43 pm
by RJT
Thin o-ring?

Re: Thread Protectors - Just will not stay tight.

Posted: Wed Feb 26, 2014 10:58 pm
by doubloon
-deleted off topic stuff-

ETA: oops you said you're worried about the "thread protector" so forget most of what's posted above ... I never shoot with the thread protector on the barrel and that has solved all my problems w/r/t thread protectors coming loose.

You could cut the thread protector in half to make two skinny thread protectors out of the one then tighten the two skinny protectors against each other and that would probably keep them in place.

Or get an O-ring as suggested above or get a Nord-Lock or a split washer but DO NOT use the washer with the suppressor.

Re: Thread Protectors - Just will not stay tight.

Posted: Thu Feb 27, 2014 3:40 pm
by SpeedyR
I know on the FNP/FNX this was an issue. most of the guys bought these o-rings from McMaster. just stick one on there, screw down the protector and be done with it. I installed one when I got my FNX 45 and haven't had it come loose.

http://www.mcmaster.com/#9263k296/=qvnt63

just get the size that's appropriate for your caliber and be good to go.

Re: Thread Protectors - Just will not stay tight.

Posted: Thu Feb 27, 2014 5:36 pm
by KSmoker
Thank you speedy, that sounds like a fix. Does anyone have the P/N for viton o-rings that would work on 1/2x28?

Re: Thread Protectors - Just will not stay tight.

Posted: Fri Feb 28, 2014 12:29 am
by nhoj_yelbom
i also need 9mm oring size please

Re: Thread Protectors - Just will not stay tight.

Posted: Fri Feb 28, 2014 2:26 am
by misternt
My 22/45 lite came with a wave washer to hold on the thread protector.

Re: Thread Protectors - Just will not stay tight.

Posted: Sun Mar 02, 2014 2:18 am
by StoneyGherkin
Granger makes a spring washer/ wave washer that is a good replacement for the 1/2 28 thread size. You might check them for the dimensions you need.

Re: Thread Protectors - Just will not stay tight.

Posted: Sun Mar 02, 2014 3:55 am
by silencertalk
Teflon tape for pipe threads from Home Depot won't gunk up anything.

Re: Thread Protectors - Just will not stay tight.

Posted: Mon Mar 03, 2014 10:31 am
by -k-
I use a 1mm O-ring, 10mm ID on 1/2-28 threads with thread relief.