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 Use loctite on castle nut/buffer tube
Double-Deuce  [Member]
2/4/2012 2:09:24 PM
When placing the castle nut back on and tightening it down do I need to use some type of Loctite? I know I can stake it, but prefer not to in case I want to change end plate again. Would it be fine and not loosen up with no loctite or staked?
nightdh  [Team Member]
2/4/2012 2:14:18 PM
Blue Loctite will do the job.
Circuits  [Team Member]
2/4/2012 2:26:21 PM
Originally Posted By Double-Deuce:
When placing the castle nut back on and tightening it down do I need to use some type of Loctite? I know I can stake it, but prefer not to in case I want to change end plate again. Would it be fine and not loosen up with no loctite or staked?


If you have the correct wrench and torque it correctly, it's not going anywhere.

Also nothing wrong with blue loctite, as mentioned above, if it gives you peace of mind.
Kilroytheknifesnob  [Member]
2/4/2012 2:26:48 PM
It's quite the controversial topic around here, but I blue loctite mine and mark them with a paint pen so I can tell if anything moves.
yekimak  [Team Member]
2/4/2012 2:31:59 PM
I use it. NEver had a problem with it coming loose or not coming off with a reasonable amount of force.

bloodsport2885  [Team Member]
2/4/2012 2:41:55 PM
I had to buy a new end plate and reassemble my lower after torquing it down tightand staking it. The buffer tube eventually rotated because I use a 2 point QD sling on my CTR stock. It finally managed to unscrew the buffer tube slightly. I used a touch of loctite on the tube to secure it and let it dry before torquing the nut and loctiting it too. It makes keeping the receiver extension straight MUCH easier.
PFC  [Member]
2/6/2012 9:05:58 AM
IMO unless it is a duty weapon there is no compelling reason to stake, I would not use Loctite in any case.
Just check the nut when you clean the weapon.
Dano523  [Moderator]
2/6/2012 3:10:49 PM
Originally Posted By PFC:
IMO unless it is a duty weapon there is no compelling reason to stake, I would not use Loctite in any case.
Just check the nut when you clean the weapon.


You may find that this changes as you start to build up CMP rigs, where the float tube gets loctite to prevent rotation when heavily slung, even after torquing down the float tube castle nut.
PFC  [Member]
2/6/2012 5:17:38 PM
Actually I was being specific to the castle nut on a CAR receiver extension.
I probably should have said as much.
I also totally agree there are situations where Loctite is called for.
rbrown0067  [Member]
2/6/2012 10:01:56 PM
Do it right stake it, you can remove it and if you have to replace it it"s cheap enough.