Hmmm interesting idea

j.p.f. wrote:
your not going to pull the trailer with the scale/ball so why do you even have to put the 2 5/16 adapter on?
wouldn't just setting the tongue of the trailer on the 2" ball tell you the tongue weight?

You are going to pull with it. That's what it's built for. I dont like the skimpy looking nut. For someone that carries a variety of materials on something like a cargo trailer and has various people loading it, it is probably a very good idea.