It worked, but this is only for those who have lost the key and are trying to remove it. Head 5/8 and drive it into the bolt, you can use another head. I tried several times until it was round. If it's on, use the breaker and turn it off. To remove the bushing from the screw once it's stuck, simply slide it back onto the bar and wiggle the bushing. I wrote this hoping that someone like me would lose the key and papers and spent 2 days rolling up and down the street looking for it in the grass…