Down to the trim pieces in my Canadian Fordor restoration, I have not yet found a source for square drive oval head brass machine screws. Do our Canadian members know of a source?
I have had good luck finding Robertson head fasteners at a local hardware store here in Canada that caters to the sailing and boat repair trade. Many fasteners stocked at Canadian hardware stores have Robertson heads. I have never looked for machine screws so I'm not sure if they have those. You might also check with Robertson at www.robertsonscrew.com for sources for anything you can't find. I also find that Fastenall is a good source for odd fasteners.
If you give me the specs Dale, there is an old timey type hardware store near my house that may have them. If they do, I will gladly send you a mittfull
Rob, thanks, sent you a PM