I found a way to remove Jawbone/RJ Thrubolts when the jaw is stripped and the bolt just spins. Take a Glue Dot, one of the sticky round dots used for posters, and stick it to the outside end of the bolt (the colored side). While applying pressure on the dot with your left thumb, unscrew the bolt with your right hand. Works every time. I have used this trick on stripped X metal screws as well, but that has only worked maybe 20% of the time (putting the Glue Dot on the tip of the driver). For Jawbone/RJ, it has never failed.