"Cheese Head"?? Made in Green Bay ... maybe??
I would assume that you are describing "Filister Head" screws - and *many* of them were "SAE" - NC/ NF; UNC/UNF; - "inch sizes". An equal amount were probably produced in Metric, Whitworth, Lowenhwertz 55 -30 ... I don't know - throw in "Dardelet Self-Locking" if you wish.
If they were used on an American camera, as the Busch Pressman, odds are that they were NC or NF. The odds are fair ( - only "fair") that readily available (or thereabouts) standard hardware store filister-head screws (e.g.,#3-48; #4-40; #5-40, etc.) would fit.