Thanks!Are you looking for OEM or just anything that fits? It's a standard M10 threading, I've used these without any issue personally:
https://www.amazon.com/gp/product/B07THZ9DVG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
YepAre you missing the whole shebang, both mount and wheel?