What is the sound of nails scratching a chalkboard called?

Does the high-pitched sound of nails scratching a chalkboard have a name?

I thought of "squeaking" or "screeching" but I don't think either of them correctly describes it.


Solution 1:

Writers tend to use the phrase nails on a chalkboard to describe the sound:

“The music of veteran pop singer Cliff Richard apparently is like nails on a chalkboard to hooligans.” [CNN]

Apparently, nobody has been able to capture the sound's singular power to excruciate in an onomatopoeia.

Solution 2:

I would call it chalkboard screech.