I have been at a loss to find oval headed 12-24 screws to go in the dash on my Canadian car. The nickel finish has worn off, due to 88 years of use, and polished stainless is a close 2nd (plus it won't rust). I was able to find some flat head 12-24 on e-bay last month and, with a bit of filing, I made the flat head screw oval headed.
Essentially, I threaded the flat headed screw into an acorn nut and clamped it into the drill press. Then, taking a fine file, pressed against it at an angle, to create the oval head. A bit of sandpaper and a polishing wheel and the oval head is made. The top left is the original screw and to its right is the flat 12-24. The bottom two are ones that I filed down.
Looks good, my solution was to buy SS oval head screws off the shelf at a hardware store in Cochrane, Alberta while on the National Tour this summer.
Clever! Bravo, well done.
That is exactly what I mean when I say a "little creativity goes a long way"!
Mike's has Robertson screw sets.