I'm trying to add a second plug off of this one. I've done this dozens of times (yes, it's got plenty of space on the circuit). I prefer the side screw method. I loosened the screws, which were tightened down all the way, and they refuse to catch and go back in.
This is a brand new plug with the test/reset switch. What on earth am I doing wrong? Have I broken the connectors forever? Even the ground is failing to tighten. I wasn't particularly rough or anything, though they were pretty tight before I opened them up. Thanks in advance.
(yes, I realize the input wires are using the port metbod. It's a pain to pull them out, so I'm planning on leaving them.)