I have a Holley 650 4bbl carb on my engine and somehow managed to lose the screw that holds the air filter in place. Does anyone here know the size screw that fits into the carb so I can get a new one from Autozone?

The stud and wing nut are 1/4 20.

Thanks smile.gif

I wish all problems were that simple! lol

BTW You can get threaded brass rod in the correct 1/4-20 size at home depot. Then you can cut it to length.