Sill Plate Screw Size GM# 9414766 - NCRS Discussion Boards

Sill Plate Screw Size GM# 9414766

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  • Timothy N.
    Frequent User
    • August 5, 2014
    • 73

    Sill Plate Screw Size GM# 9414766

    Can someone tell me the correct screw size for the sill plates for my 65 roadster? I took out what I believe to be originals that were #10 chrome. I bought replacements that were #8 with #6 head. The AIM shows part # 9414766 but I cant find a cross reference to what size that is. Thanks Tim
  • Leif A.
    Extremely Frequent Poster
    • August 31, 1997
    • 3607

    #2
    Re: Sill Plate Screw Size GM# 9414766

    According to AMK products, a GM #9414766 screw (which is the correct part number for your sill plate) is a #10-16X1". Seems kinda long, but take a look at the attached and see what you think. Scroll down to page number 84, item #9.
    Leif
    '67 Coupe L79, M21, C60, N14, N40, J50, A31, U69, A01, QB1
    Top Flight 2017 Lone Star Regional

    Comment

    • Timothy N.
      Frequent User
      • August 5, 2014
      • 73

      #3
      Re: Sill Plate Screw Size GM# 9414766

      Originally posted by Leif Anderson (29632)
      According to AMK products, a GM #9414766 screw (which is the correct part number for your sill plate) is a #10-16X1". Seems kinda long, but take a look at the attached and see what you think. Scroll down to page number 84, item #9.
      https://www.amkproducts.com/Catalog_PDF/74-91.pdf

      Thanks Leif, That clears it up for me. Tim

      Comment

      • Alan D.
        Extremely Frequent Poster
        • January 1, 2005
        • 2027

        #4
        Re: Sill Plate Screw Size GM# 9414766

        Also a GM source dated "62" to confirm.
        Attached Files

        Comment

        • David B.
          Very Frequent User
          • March 1, 1980
          • 687

          #5
          Re: Sill Plate Screw Size GM# 9414766

          GM #9414766 is a Type AB 1" chrome-bright nominal screw size 10, nominal head size 8, threads per inch 16

          Comment

          • Timothy N.
            Frequent User
            • August 5, 2014
            • 73

            #6
            Re: Sill Plate Screw Size GM# 9414766

            Originally posted by David Bartush (3288)
            GM #9414766 is a Type AB 1" chrome-bright nominal screw size 10, nominal head size 8, threads per inch 16

            Comment

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