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locktite on castle nut?

Discussion in 'Black Rifle Forum' started by Schrag4, Oct 27, 2012.

  1. Schrag4

    Schrag4

    1,292
    216
    May 21, 2010
    Wichita, KS
    Ok, so I'm building my first AR, and I just got the LPK and a standard 6 pos stock. I've installed the LPK and also the stock, but I don't have the right tool to tighten the castle nut, so I'm not quite done (it's hand tight at the moment).

    So, when I finally get the tool to tighten the castle nut, should I use locktite? Or is it unnecessary?

    Thanks!
     
  2. Cole125

    Cole125 Silver Member

    7,584
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    Apr 5, 2008
    Far West, USA
    I use a little blue loc-tite on the castle nut on all my builds. Make sure to use blue removable, not red. From what I gather if its tightened to spec you don't NEED to use thread locker though.

    Another option is staking the castle nut, plenty of youtube videos on it.
     


  3. mvician

    mvician Lifetime Member

    3,149
    7
    Jun 8, 2007
    NW Indiana
    Stake the nut, don't use a thread locker. If you do use it, use just a little, don't hose it on.
    And yes, even torqued to spec, the nut will loosen eventually.
     
  4. surf

    surf

    1,019
    4
    Jul 7, 2010
    As mentioned no loctite needed. Torque to proper spec and stake.

    Carbine 38-42 ftlbs
    Rifle 35-39 ftlbs
     
  5. WoodenPlank

    WoodenPlank Who?

    7,958
    3
    May 15, 2010
    NW Florida
    Ive never had one walk loose, even under somewhat heavy use, so long as it was torqued to spec. The only reason my current one is staked is to cut down on any sudden urges to change from the standard lock plate.
     
  6. bmoore

    bmoore

    4,373
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    Jan 15, 2006
    Under a regime.
    OP you have been given some good info. I will add that I did a drop of blue Loctite on one of my castle nuts. It held great and when I needed to get it off I just held some heat on it for a little bit, when it came off the it kind of gummed up the threads. I would stake or torque to the specs that Surf posted.
     
  7. Big Bird

    Big Bird NRA Life Member

    9,690
    1,141
    Aug 7, 2003
    Louisville KY
    Torque to spec and stake. Staking takes 5 minutes--is easy and not permanent. With a proper castle nut wrench it doesn't take much force at all to unscrew a staked castle nut. I've done it several times and its no big deal.
     
  8. Schrag4

    Schrag4

    1,292
    216
    May 21, 2010
    Wichita, KS
    I think I'll just stake it after I torque it to spec. I really didn't know what that meant until I spent about 5 minutes on youtube, doesn't seem like a big deal (yes I'm that much of a noob).

    Thanks again for all the replies!
     
  9. PlasticGuy

    PlasticGuy

    5,165
    0
    Jul 10, 2000
    I have seen unsecured castle nuts work loose. I always do something to secure them. I used to stake them, but now I just use a drop of blue loctite. It works as well, and is easier to break free if I need to remove it later.
     
  10. smokin762

    smokin762

    5,250
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    Apr 19, 2009
    Ohio
    I put this rear reciever plate on all my 16" AR's. I even have them for my 20" rifles with the A2 stock. I like it. :supergrin:

    http://www.gggaz.com/looped-receiver-end-plate-sling-adapter-for-fixed-stocks.html
     
  11. smokin762

    smokin762

    5,250
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    Apr 19, 2009
    Ohio
    I do the samething. I never had one come loose yet.
     
  12. WayaX

    WayaX Lifetime Member

    2,564
    32
    Feb 27, 2007
    No loctite. Torque, then stake. This is the proper way to do it, and when done correctly, works.
     
  13. RatDrall

    RatDrall

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    May 23, 2009
    I loctited (removable) mine, then staked it.

    I decided to go with a different endplate a few weeks later. It took a lot of force to break the staked and loctited castle nut free, but it came loose with a cheapie castle nut tool, with no damage to the threads or anything.

    I see no reason not to loctie the castle nut with removable loctite before staking it.
     
  14. Mayhem like Me

    Mayhem like Me Semper Paratus

    18,247
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    Mar 13, 2001
    Not a chance
    No reason to do it either ...if you are staking.
     
  15. smokin762

    smokin762

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    Apr 19, 2009
    Ohio
    Are you saying there is no reason to remove the castle nut?
     
  16. Mayhem like Me

    Mayhem like Me Semper Paratus

    18,247
    4,128
    Mar 13, 2001
    Not a chance
    LOCKTITE....Not Needed when staking....
     
  17. smokin762

    smokin762

    5,250
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    Apr 19, 2009
    Ohio
    I understand what Staking does. However, some people like to change things. It's a lot cheaper than buying a new AR. I don't collect them.

    I think what some people miss is why staking might need to be done. If you don't own a F/A weapon. I view it as pointless.
     
  18. Mayhem like Me

    Mayhem like Me Semper Paratus

    18,247
    4,128
    Mar 13, 2001
    Not a chance
    UGGHHHH .....Properly staked wont ruin a thing and can be restaked..
    My post pointed out no need to locktite AND STAKE.... as locktite is not needed When staking...

    Seen plenty of guns that when worked hard in classes lose tension on the castle nut when not staked, no FA fire , just good old fashioned reloading drills and stoppage drills along with hundereds of transition drills.

    Staking is done for a reason, if you don't want to take the 3 seconds to correctly place a punch and hit it thats OK. Just understand that locktite is not (just as good) .
     
  19. smokin762

    smokin762

    5,250
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    Apr 19, 2009
    Ohio
    Okay I get, you feel this absolutely needs to be done and there is no other option. I’ll just agree to disagree with ya on this. :winkie: