Wattgate IEC does not fit tight.

Really, I try to avoid ever saying "don't get this gear, it's bad" on this forum, or anywhere and prefer listeners to make their own choices.  Wattgate is a rare exception and I think consumers are safer and better off with a $5 part from the hardware store.

@zlone

The IEC connection scheme is pretty simple, but that doesn't give Wattgate an excuse  to make it worse.   I can see how the IEC footprint really helps in situations where high density is needed, like a power distribution center in a rack.

Yes, there are a variety of commercial "locking" plugs like these.

I have the same problem with wattage connectors. I just rubber-banded the connecter to the footer of the DAC to which it is connected. 

When I put together a power cord using Wattgate I was sent a little plastic tube to sit between the positive and negative blades to add bulk and tighten up the connection. Pretty poor excuse for a fix. And yes, the assembly screws are soft too.

Not sure about the Wattgates, but these inexpensive 'iec inlet tighteners work for a variety of PC / components and are easy  to try:

https://www.amazon.com/dp/B0771T7PC9?ref=ppx_yo2ov_dt_b_fed_asin_title