Whats this relic? Feels heavy duty

[Rwdrive]

Found this bolt and nut about 2 feet from one another. I believe they would fit together if clean. The twisty on the nut seems intentionally attached. I banged it with a hammer and it is firmly attached. I found this about 6 feet from the last item posted, which folks believe came from an old wagon. Please see pics. Thank you!
Jeff

 

[creskol]

It is called a HEEL BOLT. Here is a link to a previous discussion on what they are for: http://www.treasurenet.com/forums/w...gon-trail-help-possible-date.html#post6459764

 

[Tony in SC]

It's called a heel nut/bolt. It is used to fasten a chain to a piece of equipment.

 

[Rwdrive]

Thanks so much Tony is SC and ceskol. Appreciate your identification of this. I found what i think may be a plow blade about a hundred or two yards away. Guessing there was a old homestead at this site. I will post that pic also now....