Looking for one of these...I can't find anything close online. Willing to buy one from someone. Came from the transmission crossmember where it bolts to the frame.
That looks like a J or U nut that is maybe used for the bumpers? Have you tried AMK Products? I like to search by image...here's one that might help you get started: https://www.bing.com/images/search?q=bumper+nut+j-nut+u-nut&form=HDRSC3&first=1