Wade Style Big Gear - Offset Hobbed Bolt Problem Solver

Have you ever had a very nice hobbed bolt that was cut slightly off the mark, making it impossible to use it with a standard big gear on your Greg Frost/Jonas Keuhling/Wade style extruder?
This happened to me when I bought a very cleanly hobbed bolt that I didn't have the heart to throw out. Instead I made a big gear with an very deeply recessed hexagon socket. With a few shims under the head of the bolt, you can line up the hobbed area with the feed path in the extruder body.