It seems tie rods for Fiat 125 and 1300 work (and well, those are also common for the stub axle itself...). The tie rod is male thread.
And it seems that also ball joints may be shared there also...Mr. Fiat, etc-- https://www.ebay.com/itm/313984785167 or
https://www.ebay.com/itm/13439...tkp%3ABk9SR9LOva_OYQ
or
https://www.ebay.com/itm/13413...7Ctkp%3ABFBM0s69r85h
All in all, more likely a fit is from Fiat 1300/1500 than the later Fiat 124 (esp because well, the parts manual points there !