Who Knows Correct Screw Size for Tail Light & Reverse Plastic Lenses?

Early A-Body Discussions

  1. dibbons

    dibbons Well-Known Member

    Messages:
    5,148
    Likes Received:
    3133
    Joined:
    Nov 6, 2009
    Location:
    La Paz, B.C.S., Mexico
    Local Time:
    6:09 AM
    I am ready to install two old tail light lenses (red) and two new repro back-up light lenses (clear with reflector) in the '65 Formula S. The photo shows some leftover broken lenses and a newer back-up lens.

    Anyway, so as not to split or crack the lenses with the wrong diameter or wrong length screw, who can help me out or direct me to a thread with some measurements? I am in Mexico and just want to run down to the nut/bolt shop down the street (don't want to involve any mail order madness for just a few fasteners). Thank you.

    Screen Shot 2021-10-07 at 7.28.39 PM.png
     
  2. halfafish

    halfafish Damn those rabbits, and their holes! FABO Gold Member

    Messages:
    2,560
    Likes Received:
    2360
    Joined:
    Aug 14, 2016
    Location:
    SW Washington
    Local Time:
    6:09 AM
    Which screw info do you need? I have a 65 Cuda parts car I can get this from, but I'm unclear which screws you are asking about.
     
    • Thanks! Thanks! x 1
    • dibbons

      dibbons Well-Known Member

      Messages:
      5,148
      Likes Received:
      3133
      Joined:
      Nov 6, 2009
      Location:
      La Paz, B.C.S., Mexico
      Local Time:
      6:09 AM
      There are two screws that attach the red, plastic tail light lens to the chrome tail light housing. There are three screws that attach the round back-up lens to the tail light housing. Total of five screws and I am guessing that all five may be the same size and length.
       
    • Garethw

      Garethw Mopar. Because rocket science is too easy. FABO Gold Member

      Messages:
      652
      Likes Received:
      597
      Joined:
      Mar 10, 2015
      Location:
      Georgia
      Local Time:
      8:09 AM
      Yes they are all the same size. Standby for some pics and dimensions.
       
      • Thanks! Thanks! x 1
      • Garethw

        Garethw Mopar. Because rocket science is too easy. FABO Gold Member

        Messages:
        652
        Likes Received:
        597
        Joined:
        Mar 10, 2015
        Location:
        Georgia
        Local Time:
        8:09 AM
        The head and diameter match very close to a #9 wood screw. Hope this helps.

        167054AD-B4C3-4072-83B5-CE0975E8199C.jpeg

        D6227AA7-1703-48A8-AA25-D592673B36BF.jpeg

        35F7C98A-6B64-4903-A6E8-01FBC7545C4C.jpeg

        94311DE3-6E85-4D49-83EE-0BF8DE6F3494.jpeg
         
        • Like Like x 1
        • Garethw

          Garethw Mopar. Because rocket science is too easy. FABO Gold Member

          Messages:
          652
          Likes Received:
          597
          Joined:
          Mar 10, 2015
          Location:
          Georgia
          Local Time:
          8:09 AM
          Also they are Philips head.

          49D0091E-6F0B-4B18-B471-77FCBD9F936B.jpeg
           
          • Thanks! Thanks! x 1
          • pishta

            pishta I know I'm right....

            Messages:
            21,422
            Likes Received:
            10808
            Joined:
            Oct 13, 2004
            Location:
            Tustin, CA
            Local Time:
            6:09 AM
            Those screws are unique: dull wood screw like with a shoulder? of course mine are not in there....I have replacement lenses in bags still.
             
          • Garethw

            Garethw Mopar. Because rocket science is too easy. FABO Gold Member

            Messages:
            652
            Likes Received:
            597
            Joined:
            Mar 10, 2015
            Location:
            Georgia
            Local Time:
            8:09 AM
            Yeah, the threads aren’t as sharp as the wood screw. I think you could get some #9 wood screws and spin them in some sand paper lightly to take the edge off. Then just shorten them to the right length. Or maybe the OP will get lucky at the bolt store.
             
            • Thanks! Thanks! x 1
            • pishta

              pishta I know I'm right....

              Messages:
              21,422
              Likes Received:
              10808
              Joined:
              Oct 13, 2004
              Location:
              Tustin, CA
              Local Time:
              6:09 AM
              • Thanks! Thanks! x 1
              • dibbons

                dibbons Well-Known Member

                Messages:
                5,148
                Likes Received:
                3133
                Joined:
                Nov 6, 2009
                Location:
                La Paz, B.C.S., Mexico
                Local Time:
                6:09 AM
                I recognize them now that I see the photos (but can't find them here in the garage anywhere). It looks to me like #9 may be one or two sizes too big (thread diameter wise).

                Evidently they measure 3/8" long with the screw head diameter of 5/16". The major thread diameter could be 11/64", 10/64" (which is 5/32"), or 9/64".

                Screen Shot 2021-10-07 at 10.02.07 PM.png
                 
                Last edited: Oct 7, 2021
                • Like Like x 1
                • Garethw

                  Garethw Mopar. Because rocket science is too easy. FABO Gold Member

                  Messages:
                  652
                  Likes Received:
                  597
                  Joined:
                  Mar 10, 2015
                  Location:
                  Georgia
                  Local Time:
                  8:09 AM
                  I think you’re right, 9 is too big. Looks like a #8 is a better fit.
                   
                  • Thanks! Thanks! x 1
                  • pishta

                    pishta I know I'm right....

                    Messages:
                    21,422
                    Likes Received:
                    10808
                    Joined:
                    Oct 13, 2004
                    Location:
                    Tustin, CA
                    Local Time:
                    6:09 AM
                    dont use too big of a screw, the plastic will craze around the threads. i guess im gonna be looking for them too soon as i thought I saved mine.
                     
                  • Garethw

                    Garethw Mopar. Because rocket science is too easy. FABO Gold Member

                    Messages:
                    652
                    Likes Received:
                    597
                    Joined:
                    Mar 10, 2015
                    Location:
                    Georgia
                    Local Time:
                    8:09 AM
                    I would try to find something in stainless.
                     
                  • dibbons

                    dibbons Well-Known Member

                    Messages:
                    5,148
                    Likes Received:
                    3133
                    Joined:
                    Nov 6, 2009
                    Location:
                    La Paz, B.C.S., Mexico
                    Local Time:
                    6:09 AM
                    "Early Birds" out of Canada have an almost correct "kit". The small screws have a sharp/pointy end rather than the flat end. A general search shows "Classic" may have a "kit", but I can only find a photo on the internet search and can't find a listing or part number on the "Classic" website itself.

                    I will have to make do for now. Found some #8 screws I will be cutting down for now. Found some nuts that fit, but the nuts are teeny-weeny and, of course, without the captive washers.

                    Screen Shot 2021-10-08 at 4.26.38 PM.png
                     
                  • Garethw

                    Garethw Mopar. Because rocket science is too easy. FABO Gold Member

                    Messages:
                    652
                    Likes Received:
                    597
                    Joined:
                    Mar 10, 2015
                    Location:
                    Georgia
                    Local Time:
                    8:09 AM
                    That pic looks extremely close to all the attach bolts. The studs hold the housing to the body. The nuts off mine are pretty small too and don’t have those shoulders. I can’t guarantee mine are original though.
                     
                  • dibbons

                    dibbons Well-Known Member

                    Messages:
                    5,148
                    Likes Received:
                    3133
                    Joined:
                    Nov 6, 2009
                    Location:
                    La Paz, B.C.S., Mexico
                    Local Time:
                    6:09 AM
                    Per email correspondence with "Early Birds" they don't ship outside of Canada.
                     
                  • Garethw

                    Garethw Mopar. Because rocket science is too easy. FABO Gold Member

                    Messages:
                    652
                    Likes Received:
                    597
                    Joined:
                    Mar 10, 2015
                    Location:
                    Georgia
                    Local Time:
                    8:09 AM
                    We’ll that’s lame. Perhaps a Canadian member can ship them to you. Probably starting to get expensive just for some screws though.
                     
                  • dibbons

                    dibbons Well-Known Member

                    Messages:
                    5,148
                    Likes Received:
                    3133
                    Joined:
                    Nov 6, 2009
                    Location:
                    La Paz, B.C.S., Mexico
                    Local Time:
                    6:09 AM
                    Right, too much to spend for such puny items.
                     
                  • dibbons

                    dibbons Well-Known Member

                    Messages:
                    5,148
                    Likes Received:
                    3133
                    Joined:
                    Nov 6, 2009
                    Location:
                    La Paz, B.C.S., Mexico
                    Local Time:
                    6:09 AM
                    The #8 wood screws I picked up are both good and bad. They have very few threads per inch, which will prevent them from likely splitting the plastic lenses. However, with so few threads they just barely hold on.

                    By holding the screws in a pair of pliers, the part sticking out was about the perfect size for cutting off with Dremel tool cutting disc. For one of the red lens screws where the boss for the screw is deeper, I just cut off the very tip.

                    Screen Shot 2021-10-09 at 1.10.27 PM.png

                    Screen Shot 2021-10-09 at 1.10.11 PM.png

                    Screen Shot 2021-10-09 at 1.10.18 PM.png
                     
                  • Garethw

                    Garethw Mopar. Because rocket science is too easy. FABO Gold Member

                    Messages:
                    652
                    Likes Received:
                    597
                    Joined:
                    Mar 10, 2015
                    Location:
                    Georgia
                    Local Time:
                    8:09 AM
                    I know they make fine and coarse thread wood screws. You might try to find some fine threaded ones. I’ve seen drywall screws come that way anyway.
                     
                  • dibbons

                    dibbons Well-Known Member

                    Messages:
                    5,148
                    Likes Received:
                    3133
                    Joined:
                    Nov 6, 2009
                    Location:
                    La Paz, B.C.S., Mexico
                    Local Time:
                    6:09 AM
                    That's a good idea, I'll keep my eyes open.
                     
                    • Like Like x 1
                    • Joey4speed

                      Joey4speed FABO Gold Member FABO Gold Member

                      Messages:
                      1,622
                      Likes Received:
                      1322
                      Joined:
                      Jul 17, 2018
                      Location:
                      Coastal NC
                      Local Time:
                      9:09 AM
                      Unfortunately that is a two way street, some guys here don't ship to Canada.
                       
                    1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                      By continuing to use this site, you are consenting to our use of cookies.