A metal squeak – depending on the type of sound you want – can be made by taking a metal plate and sliding it sideways over a flat surface – like a table or a door. The plate will make a sort of whining sound – especially if its whole border/edge can slide sideways.
For a howling sound, the lid/plate should be positioned standing – like a door – and then moved like a broom as if it was meant to wipe something off the floor/surface.
For the metal plate, use a metal box lid or similar.
– David Filskov