Standard gauge cluster screw size

My memory is weak but I think what goes in through inst' panel and into the dash are #10X3/4. I know they are filister head screws. Never even considered that a hardware store might have them. I ordered the correct chromed head screws for pre 70 rally dash from mrGusa.com. They would have black too. Actually... the factory screws were special at about 5/8 long. 3/4 works. 1/2 might also.