Alyce,
As Mike says lots of industrial machines use round shank needles. There are also a number of antique and vintage machines that use obsolete flat shank needles that you can substitute round shank industrials for. I have three machines I do this with.
If you don't want those needles, and if they are good and useable, don't toss 'em, find out what they are and I'm sure someone can use them. I'd be interested if they are some I could use.
Joe