I think they are saying that those push fit spade connectors would fit the lugs on the back of the sockets. Is that what you wanted them for? I always solder wires to those lugs, and often put a short section of shrink tubing over the lug and first part of the wire, for protection against electrical shorts and mechanical strains.
Yep, that's what I need. I have been working with a lot of these, and so far I have been soldering them all these years. I am hoping to find a quick connect solution for a low current project, which require lots of these.