Here's mine. I was trying to get something simple and low-profile with a detachable cord. They're 120v 1500w elements, so I wired them up to a standard NEMA 5-15 plug ( your typical north American household outlet ).
The gray part is a 1" electrical conduit coupler which slides over the heating element. The yellow part was the inside of a replacement cord end I bought at Princess Auto http://www.princessauto.com/pal/en/P...ctor/0700146.p
but it looked like the ones at Home Depot were the same size. I sanded the inside of the conduit coupler slightly to allow for a tight compression fit with the cord end. The ground wire was soldered to the metal housing of the element, which provides a good ground connection to the keg as the threaded coupler is welded to the keg itself. The whole assembly was filled half-way with epoxy to ensure the electrical connections to the element don't come loose, and to hold the coupler onto the element.
Works great. The yellow plug is extremely snug, but if I ever have troubles with it in the future, I'll re-install the screws and set them in epoxy.
The last picture shows both of the 1500w elements in my BK. I've done one of them in this picture, the other one still needs to be done.
Also posted here: