Looking for a spiral wound flat slinky ?

Does anyone know what the technical term is for a spiral wound flat slinky ? It is solid to the core and may have a small hole at the core, but basically is just like a slinky (course it won’t spring like a slinky).
Does McMaster-Carr have anything like that ? Alumnium would be good.
I’m thinking of a small version for shroud baffles, but even a larger one has interest for other things.