The build quality of this component seems to be ok, but the post is too short. In order to make the post useful at all, I have had to change the nuts to half nuts and to get three connections onto the post, I had to dispense with the lower nut altogether.
In my view, the threaded post is too short to be of any real use. In order to get just two connections on this post, you have to leave off the washer or one of the nuts. Also the end of the thread is badly finished, making it difficult to attach the nut.