yooper

I searched the forum for towing eye but came up empty. The 2015 Fusion I bought didn't have a towing eye (didn't think to look for one when I bought it), so I need to find one. I'm certainly not up to paying the $35 for the eye I'm finding on eBay or Amazon. Does anyone know the thread pattern? I know it's a left-hand thread, but the pitch or tpi and shaft diameter would be great. I might be able to find something at Fastenal and make my own. Or is there a decent source for towing eyes, used or new, at a decent price? Thanks, Bruce