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57 fastners

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  • Jerry B.
    Very Frequent User
    • August 31, 1994
    • 416

    57 fastners

    Would someone be so kind to post a photo of the screws that fasten the inner skirt to the front fenders. Also. is their any pattern "distance" and number of these screws. thanks
  • Mike M.
    NCRS Past President
    • May 31, 1974
    • 8364

    #2
    Re: 57 fastners

    are you referring to the pan head phillips that attached the top surround to the inner skirts? the number of them used seems to have varied. most 56-7's i have or have judged have four on each side . mike

    Comment

    • Jerry B.
      Very Frequent User
      • August 31, 1994
      • 416

      #3
      Re: 57 fastners

      Thanks Mike for your post. Are these screws the self starting type find in many locations?

      Comment

      • Rod K.
        Very Frequent User
        • March 31, 1990
        • 441

        #4
        Re: 57 fastners

        Believe they are #10-16 X 1/2 type BT pan head Phillips, which is a thread cutting type used extensively throughout the body. They'll have a notch in the starting threads which creats the cutting edge.

        Comment

        • Scott S.
          Very Frequent User
          • February 28, 1979
          • 747

          #5
          Re: 57 fastners

          Jerry, Sometimes you can find the original locations by looking underneath in the wheel wells. Also you should have five of the same screws along the front edge of the hood opening. This is the same area/location of the rubber hood bumpers.
          Scott

          Comment

          • Rod K.
            Very Frequent User
            • March 31, 1990
            • 441

            #6
            Re: 57 fastners

            Scott, just curious. Are we sure ALL cars had the front edge screws? My Nov '56 did not have them, no evidence of ever having them. I concluded they were like the top surround to inner skirt screws which varied from two to four as I understand it, kind of optional if needed.

            Comment

            • Scott S.
              Very Frequent User
              • February 28, 1979
              • 747

              #7
              Re: 57 fastners

              Rod, The screws on the front are used to attach the front header panel into the body. The screws held the panel in place until the bonding adhesive had hardened.
              Scott

              Comment

              • Jerry B.
                Very Frequent User
                • August 31, 1994
                • 416

                #8
                Re: 57 fastners

                Rod, what does the "16" mean 10x16 . 10 is the head size 1/2 is the lenght. Is that correct? Thanks all for your replies.

                Comment

                • Rod K.
                  Very Frequent User
                  • March 31, 1990
                  • 441

                  #9
                  Re: 57 fastners

                  Jerry,

                  The #10 refers to the thread diameter which will be .190 (3/16) inch. Screws under 1/4 inch diameter are "number" sizes, usually 4, 6, 8, 10, 12 or 14. The -16 is the threads per inch, not the same as a standard machine screw. A standard #10 will have a pan head dia of just under 3/8". Length is 1/2 inch.

                  Having said all that, the more I think about it the less I'm sure those are #10s. They may be #8s. Haven't found them in the AIM and my car is not accessible to check right now. Maybe Scott can confirm.

                  If #8, the thread would be .164 (just over 5/32) dia and head dia would be about 5/16. Length might be 3/8 or 1/2.

                  Comment

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