I heard about Stage 8 locking fasteners from friends that built racecars and had also seen your products in the Wild Horses 4×4 catalog. My ‘67 Ford Bronco would go out of time due to the distributor hold down bolt coming loose after a few hundred miles of driving. I installed Stage 8 fasteners 6 years ago and haven’t had that problem since then. Next up…Stage 8 header bolts! I know the bolts aren’t going to back out!