85 yamaha 225dx rear wheel stud

[Dmitch1]

I know this is a dumb question, but got handed down my old mans 1985 Yamaha 225dx and have a few minor things to get it running. Somehow lost one of the studs coming off the rear wheel hub while the wheels were off during storage. Can somebody tell me where to get a replacement?
Looked online but don’t see my particular model listed and I don’t know if it’s a universal part or not

Thanks

[shortline10]

Probably easier to just buy a good used hub , if the stud fell out the hub is probably compromised anyway .

Their cheap on eBay
https://www.ebay.com/itm/382390860868?epid=1811863702&hash=item5908457c44:g:IhIAAOSwjBdgP-nr