Originally Posted by
entangled
A good old fashioned hardware store has a shocking array of screws and other little bits. And they'll help you so you don't have to look through it all.
Long shot, but if similar enough, maybe it's something you could get from the Singer Featherweight Shop?
https://singer-featherweight.com/
It's my understanding that sewing machine screws are not threaded to the modern standards. So generally speaking, you can't replace a sewing machine screw with a screw from the hardware store. (I could be mistaken.)
My local sewing machine repair shop has a cabinet full of screws, too. I think the charged me $3.00 for one I needed. It was well worth the price. They found the screw for me, though.
bkay