This screw seems to always be missing. We made our screw just a little longer than stock to allow installing the Hi-Po air cleaner. Fits most Autolite carburetors. Size: 4 1/8 inches length 1/4-20 X 5/16-18 threads

Features:
  • Fits most Autolite carburetors
  • Made of high quality steel
  • Longer than stock
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