Plates for screw-on legs

[Man-in-a-tree]

Back in the 70's you could buy turned wooden legs and plates to screw them into to make coffee tables and the like..
I have a kiddies table to repair where the T-nut has pulled through the MDF (Yuk!) used to make the table.
Searching for a source of the rectangular metal plates with circular raied section at a slight angle to give a cant to the legs. - If I can find a set I can repair it quite easily.

Any ideas of a source? midlands or online UK.

Cheers.