So basically how it works is the Barbs each slot into the reversed side of a stud with a hole in it. The stud part then is connected to the 7L Liftarm. This allows for the Barbs to stay in place better than using a 1/2 pin and allows for a thinner build. I just with the 3L Liftarm was a 3 pinhole version so the bohrok teeth could be replaced with a 1x1 slope.
As far as I can tell from Homer Doo, it should stay connected quite well.
His head is held on by the same connection.