This stud seems to always be missing. We made our stud just a little longer than stock to allow installing the Hi-Po air cleaner. Fit most Autolite 4V carburetors assembly. Zinc plated for years of service. 4.50 in. length, 1/4-20 in. thread,

• Zinc plated finish
• Fits most Autolite 4 barrel carburetors