GlenWillits- What parts did you use to hook up the thermocouple? I tried to hook it up yesterday and I couldn't find parts at Menards or Home Depot that would go from the burner to the Thermocouple and than to the tank. Looking at your first picture, it looks like you have only 2 parts on either side of the Thermocouple. If you could let me know what they are and where you bought them that would be great. I also have to try and exchange my burner as when I hooked it up yesterday, it leaks. I haven't even used it yet, it's only a month old.
For anyone else who reads this later, you're asking about the safety valve, not the thermocouple. The thermocouple is the part that connects to the safety valve, and sits in the burner to detect the flame.
As best I recall, looking at the picture, here's the parts I used, from the supply hose to the smoker (edited after confirmation from fuzzy0026 of correct size for safety valve):
1) 3/8" Flare male x 3/8" NPT female
2) 3/8" NPT male x 1/8" NPT female
3) Safety Valve
4) 3/8" NPT male x 1/8" NPT female (Same as part 2)
5) 3/8" Flare male x 3/8" NPT female (Same as part 1)
6) 3/8" Flare female x 3/8" Flare female
You basically need to go from 3/8" Flare on the hose to 1/8" NPT on the safety valve, and back to 3/8" Flare on the smoker. In addition, I was worried that after tightening all the parts, the safety valve button might not be in a desirable position, so I added part 6 which is a rotating 3/8 Flare coupling. I was able to tighten everything starting at the hose end and get it locked down, and then screw the last flare fitting onto the smoker, keeping the push button pointing out while I tightened it.
In addition, I couldn't find a single part (at my Home Depot) to go from 3/8 Flare male to 1/8" NPT female, so I had to use 2 parts. If you can find a single part, 1 and 2 would become a single part, and 4 and 5 would become a single part.
Truthfully, my fittings may not be the best or only way. I went to HD with my safety valve, and knowing I needed to have a 3/8" flare male on one end of the final contraption, and a 3/8" flare female on the other end, with the ability to rotate it into alignment, and I played around with fittings until I found a combination that worked. If I had landed at a store with different stocked fittings, I might have ended up with a different approach.
Glen