I just put together a small electric HLT. There's nothing special about the HLT, its an Igloo "Picnic Basket" cooler that holds about 6 gals filled up. I have a 2000 watt 120v element in it.
Previous posts here recommend ordering a 1" SS nut to attach the heating element. These things are big $$$. Bargain fittings has them for $8.25 + whatever shipping works out to. This is a little rich for my blood and I didn't want to wait.
I ran down to Menard's and picked up a 1" sweat to 1" FPT copper fitting. It was less than $5.00 with tax. You probably wouldn't have to, but I cut off the sweat end so I was basically left with a copper nut. Works great.
Just hoping to save some folks a little time and money.
EDIT: added photos HLT