I loved my Shovelhead, and like a lot of motorcycle owners, regularly worked on my own bike. Replacing a new exhaust pipe was a cinch—until the pipe fell off on the first day out of the box! Surveying the bolt, I realized there was nothing preventing it from working loose again—and again. As much as I liked my bike, I wasn’t interested in replacing the same bolt every month for the rest of my life! I decided to do something about it. With the companionship of my dog Eightball, I started with a simple concept: a bolt that wouldn’t work its way loose, even under extremes of temperature and vibration. how hard could that be?