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Tip for stuck IAC/JIS screws

Discussion in '1st Gen. Tacomas (1995-2004)' started by ElTaquitoJr, Jul 19, 2020.

  1. Jul 19, 2020 at 3:16 PM
    #1
    ElTaquitoJr

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    ElTaquitoJr [OP] Well-Known Member

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    I've run into issues with these screws in the past so I know you can strip them really quickly if using a regular Philips head screw drivers plus they're on there tight.

    This time around I stuck a 12" adjustable wrench on the end of the screw driver to generate the torque needed to break the screw free.

    15951970316273690915149954941088.jpg
     
    ElTaquitoJr, Jul 19, 2020
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  2. Jul 19, 2020 at 3:19 PM
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    Wyoming09

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    Wyoming09 Well-Known Member

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    JIS screw drivers right there with the Irwin rounded hardware sockets for must have tools
     
    Wyoming09, Jul 19, 2020
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  3. Jul 20, 2020 at 9:07 AM
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    skeezix

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    skeezix Well-Known Member

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    Where can one buy JIS screwdrivers?
     
    skeezix, Jul 20, 2020
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  4. Jul 20, 2020 at 9:12 AM
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    jbrandt

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    jbrandt Made you look

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    jbrandt, Jul 20, 2020
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  5. Jul 20, 2020 at 9:21 AM
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    skeezix

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    skeezix Well-Known Member

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    Thanks for the quick reply!
     
    skeezix, Jul 20, 2020
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  6. Jul 20, 2020 at 9:24 AM
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    SR-71A

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    Well now Im curious.. Is JIS any different than a 'regular' philips head?
     
    SR-71A, Jul 20, 2020
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  7. Jul 20, 2020 at 9:27 AM
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    BkerChuck

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    BkerChuck Well-Known Member

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    JIS is different from Phillips. It has to do with how the JIS comes to more of a "sharp" point where the Phillips edges form a small "dot" at their tip. I've worked on a lot of Japanese motorcycles through the years and witnessed a lot of destroyed fasteners from using Phillips screwdrivers on JIS hardware.
     
    BkerChuck, Jul 20, 2020
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    SR-71A likes this.
  8. Jul 20, 2020 at 6:26 PM
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    Wyoming09

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    Wyoming09 Well-Known Member

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    I bought JIS screw drivers From McMaster -Carr and some from Amazon the very same brand but the Amazon ones came from Japan
     
    Wyoming09, Jul 20, 2020
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  9. Jul 21, 2020 at 11:16 AM
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    slander

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    Man learn something new evreyday!
     
    slander, Jul 21, 2020
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  10. Jul 21, 2020 at 8:42 PM
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    Brahms

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    Brahms Well-Known Member

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    Skip to 2:50 to see a demonstration of how much grip the JIS has compared to a Philips. https://youtu.be/gEwVUZr5xxQ
     
    Brahms, Jul 21, 2020
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  11. Jul 21, 2020 at 11:00 PM
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    paetersen

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    paetersen Well-Known Member

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    Don't you mean Phillips is more pointed so the bit doesn't bottom in JIS screws? JIS drivers are more blunted, Phillips drivers come to a point.

    A JIS driver will remove a Phillips screw with no damage, a Phillips driver will likely strip a JIS screw because it can't bottom in the screw head.

    A hammer impact driver with JIS bits works magic on old stuck japanese motorcycle screws.
     
    Last edited: Jul 21, 2020
    paetersen, Jul 21, 2020
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  12. Jul 22, 2020 at 4:15 AM
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    BkerChuck

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    BkerChuck Well-Known Member

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    The illustrations I've seen depicting the 2 show the JIS coming to a sharp point and the Phillips appearing to have a small dot or circle at the very tip. The set of JIS screwdrivers I have came from McMaster-Carr and the tips are much sharper than any Phillips I own or have ever handled. This is why the Phillips cams out on a true JIS screw. The more blunt tip of the Phillips can't fully seat in the JIS screw.
     
    BkerChuck, Jul 22, 2020
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  13. Jul 29, 2020 at 9:05 AM
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    Madjik_Man

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    Madjik_Man The Rembrandt of Rattle Can

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    Piggy backing this thread.

    Is it safe to assume that all the screws on our truck will be JIS? I notice the two little ones holding on the MAF were tricky when using a Phillips. I now assume those are JIS also?

    Also any recommendations on a decent JIS set without breaking the bank?

    Im a bit weary of this one:
    $27 JIS Screwdriver Set JISPH1 PH2 PH3 4pc Set for Japanese Standard Screws
    https://www.amazon.com/Screwdriver-...rds=jis+screwdriver+set&qid=1596038692&sr=8-4

    Because of the first/most relevant helpful review
     
    Madjik_Man, Jul 29, 2020
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  14. Jul 29, 2020 at 9:11 AM
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    BkerChuck

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    BkerChuck Well-Known Member

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    Here's what I bought.

    https://www.mcmaster.com/53325A61/

    Very happy with them, they're actually made in Japan for what that's worth. Left my neighbor use one on a stuck Phillips screw and he was pretty amazed at how well they work.
     
    BkerChuck, Jul 29, 2020
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    CrustyTaco likes this.
  15. Jul 29, 2020 at 9:15 AM
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    3JOH22A

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    3JOH22A トヨタ純正男娼

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    Pro-tip: Put a dab of valve grinding compound on the screwdriver tip to increase traction - learned this from Eric at South Main Auto YouTube channel.
     
    3JOH22A, Jul 29, 2020
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    CttAznRanger likes this.
  16. Jul 29, 2020 at 9:36 AM
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    pairodice

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    pairodice Well-Known Member

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    Impact driver
     
    pairodice, Jul 29, 2020
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  17. Jul 29, 2020 at 10:51 AM
    #17
    3JOH22A

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    3JOH22A トヨタ純正男娼

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    Yeah manual impact driver is great if the installation allows for it. Unfortunately the tool is impractical for "flimsy" parts like the fuel door striker. For the IAC it's probably fine.
     
    3JOH22A, Jul 29, 2020
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Products Discussed in

JIS Screwdriver Set JISPH1 PH2 PH3 4pc Set for Japanese Standard Screws
$26.72
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