Thread locking Action Screws

Discussion in 'Gunsmithing' started by TexasTB, Jun 9, 2018.

  1. TexasTB

    TexasTB Well-Known Member

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    do you use Blue Threadlocker (non permanent) on your action screws?

    Tb
     
  2. odoylerules

    odoylerules Well-Known Member

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    I had problems on my current chassis with the action screws coming loose, once during a match. Ticked me off so much I bedded the lug and used blue lock tight on the action screws. Solid as a rock now. The only minor draw back is when you have to take it apart for some reason, you really should try to clean out all the lock tight residue. No big deal to do.
     
    Dosh likes this.
  3. J E Custom

    J E Custom Well-Known Member

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    The reason I always pillar bed (Not just Bed) is to prevent the action screws from loosening. The pillars need to touch the action and the floor metal to prevent the stock from being compressed and allowing the action screws from loosening. The bad thing about this is that when you re-torque it applies uneven stress to the action and may cause a shift in the POI or worse, the accuracy

    If you have a metal to metal to metal pillar bedding there will/should be no reason the use a thread locker. I have checked action screw torque on rifles that have not been taken out of the stock in many years and the torque remained the same.

    Before I started adding pillars to my bedding, loose screws were common. (In the rifles, I still have a few).:confused:

    If you have a rifle that has this issue, a non hardening thread locker is OK if you use it sparingly in my opinion.

    J E CUSTOM
     
    Last edited: Jun 9, 2018
    logman48 likes this.
  4. shortgrass

    shortgrass Well-Known Member

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    I find actions that are metric and use 6mm X 1.0 threads for their action screws tend to work loose themselves through use of the rifle and transportation of the rifle, even when pillar bedded and properly torqued. The tread is just too course. Thread locker is a must on those, IMO. There is a reason most gun screws are fine threaded.
     
  5. just country

    just country Well-Known Member

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    morning, I use bevel washers to put torque on actions. these
    washers r spring loaded. will produce downward action
    on actions screws. u can get thick or thin washers.
    I get them in SS. justme gbot tum
     
  6. TexasTB

    TexasTB Well-Known Member

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    Thanks everyone.

    Just Country

    Where do you place the bevel washer, under the head of the action screw?

    Thanks, tb
     
  7. jrock

    jrock Well-Known Member

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    I'd only consider thread locker on a non-pillar bedded stock.
     
  8. just country

    just country Well-Known Member

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    morning, doing this fix for years. first I change the stock
    screws to flange base torque head screws, second I put
    the bevel washers under the head of the screws. go to a
    reputable fastner place to get the hardware.
    justme gbot tum