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Skid plate bolts

Discussion in '2nd Gen Tundras (2007-2013)' started by Notarobot, May 15, 2021.

  1. May 15, 2021 at 7:01 PM
    #1
    Notarobot

    Notarobot [OP] Jagged lines!

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    What are the skid plate bolts threads????

    The search feature is overwhelming with every mention of a word showing up.

    I need to drill out and replace my skid plate bolts with stainless. I'm holding on with 2 bolts and the front bracket hooks.

    Eventually I'll go to aluminum plate but the bolts will be the same.
     
  2. May 15, 2021 at 7:15 PM
    #2
    Trooper2

    Trooper2 Premium Lone Star Member / SSEM #13

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  3. May 15, 2021 at 7:18 PM
    #3
    Notarobot

    Notarobot [OP] Jagged lines!

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  4. May 16, 2021 at 4:11 AM
    #4
    fixnfly

    fixnfly New Member

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    If your drilling out and re-taping you can make them any size you want.
     
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  5. May 16, 2021 at 7:29 AM
    #5
    greghoro

    greghoro New Member

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    Check out this thread: Note, the factory bolts have a few features you may not find in stainless:
    - Bolt has a pilot tip to assist in lining up the recessed skid plate bracket with the threaded hole and helps minimize cross-threading. You are typically doing this by feel, not by sight.
    - Flanged head to keep bolt from falling into socket too far, allowing you to use a 6 point deep socket.
    - Thick flat washer that is captured in the bolt


    Greg
     
    Last edited: May 16, 2021
  6. May 19, 2021 at 4:56 PM
    #6
    Notarobot

    Notarobot [OP] Jagged lines!

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    That's good info Greg, thanks. 1.25 thread pitch means they are likely m6x1.25x20 (maybe 30)mm.

    I might be able to source some stainless flange bolts. Worst case, put snap capture washers on the stainless.
     
  7. May 20, 2021 at 10:21 AM
    #7
    greghoro

    greghoro New Member

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    More like M8. M6 doesn't come in 1.25 pitch.

    My oil change cheat sheet calls for a 12mm socket to remove the bolt, as does the link I provided earlier in the thread. Looking online, a 12mm wrench is used for a JIS standard M8 bolt. No non-JIS standard metric bolts use a 12mm socket (M6 uses 10mm, M8 uses 13mm)

    Found this thread, which confirms: As far as length, not all of the length is threaded for attachment, some is used for the pilot tip. The skid plate bracket is fairly thin.


    Greg
     
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  8. May 20, 2021 at 1:20 PM
    #8
    Notarobot

    Notarobot [OP] Jagged lines!

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    My mistake. I don't use a lot of metric threads.
     

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