DDK - Die Deutschen Klassiker

I'd appreciate any help in trying to identify these 3 parts. I have multiples of each but not sure what they are.
Left hand ones is a pivot block for something but can't remember what.
Middle part has a metal thread insert on the underside.
None have any part numbers on them.
Any pointers much appreciated.
Cheers
Andrew

Left hand part looks like the door bin lid pivot on an impact bumper car.

Thanks Jonny, yes, I remember now with your prompt. They are all door pocket parts.