Product review (2 stars): Nice plug, but quality control is a concern.
I am not thrilled with the quality of this product.  After I was done installing the plug on a cord, there was a rattling noise inside the plug.  I disassembling it and found that one of the rivets (see photo) used to attach a plate inside the plug had fallen out of its hole. This is very concerning, because if it ever touched two of the terminals inside the plug, it could have shorted and started a fire.  As a result, I removed the other rivet as well and replaced them both with screws of the same size.  At least I can tighten the screws and know they are actually tight.