The size doesn't tell what machine it fits,,,,,it tells what type of fabric that particular needle should be used on. That is why we ask about the size. It should be written on the bottom of the holder.
If you take a magnified glass it may say on the needle or package a number. One indicates woven, knit, etc. The number is usually on the holder. Is there? I indicates if they are ball point for knits. You don't want to use a woven purpose needle on a knit, for example