They work correctly. I didn't have to assemble them.
I know it may seem like it's pointless to leave a review on RJ-45's, but I'm impressed. When I first started I was having a hard time keeping my wires in order. Then I realized that the other little bag contained a very innovative item. These connectors have very short tracks for the wires. You stick the wires into the small plastic piece that has channels built into it. Even if you've never terminated cat 5 or 6 you can do it easily with these. Once your wires are in the channels, simply grab them with pliers, pull all the slack through. Use your cutters to clip the wire on the end of the plastic piece and then shove into the RJ-45 all the way and crimp. Will always use these now.