VCCA Home Forums Thread Like Summary - Idler arm bolt size 1950 Bel Air

I took this apart some time back and can't remember the large bolt size. I have misplaced the one I took out. Is it 1/2 sae or uss, and how long?

Thank you, Gene. I appreciate your willingness to help. I am a Corvair person but I also have this 50Bel Air that I love to drive.
Bill Pierson

I had several Corvairs, last one was a 1963 Convertible.
I had a 1950 PG BelAir in 1952 and now have my last remaining collector car a very nice all original 1950 PG Deluxe sedan which I hope to sell before winter as I am no longer driving.