Guys I have read a good number of these posts. There's no way I'm going to be able to read nearly 200 pages. I did try searches and all that but my target is somewhat generic (drill, thread, etc..)
I am looking for the thread size of the crank handle retainer. I found posts that say "just take it to the hardware store" which is a fine bit of advice. The problem is I will be headed to brew at my buddie's house and I want to bring what I need to motorize. If you look @ Kansas and find the place furthest from everything paved - that's where he lives. A trip to a hardware store is a good hour round-trip. So, any assistance there avoiding one or more of those trips will be highly appreciated. I'll tip a beer in your direction.
If my memory serves me right (I tossed the receipt) I used a 5/16" bolt that was either 2 or 2.5 inches long. Just make sure it's long enough to stick out to get a driver on the bolt.
Good luck!