I used a bigger bulkhead fitting I got from morebeer and I used hole saws to make the hole bigger and to cut the relief in the outer plastic. The fitting comes with it's own washers and has 1/2 pipe internal threads on inside and outside of the fitting. I also used their stainless false bottom. It works fantastic.
Fermentor 1: Bill's House Ale II, Fermentor 2: German Helles, Fermentor 3: Bill's Schworzbier (Black Bier)
Tap 1: Bill's House Ale II, Tap 2: German Hefewizen, Tap 3: Nut Brown Ale
Future Brews: Stone IPA Clone, Blonde Ale, Budvar Clone, Newcastle Clone
New toy: Blichmann 27 gallon fermentor
If you find yourself in a hole, the first thing to do is stop digging
Good judgment comes from experience, and a lotta that comes from bad judgment