Lucky for me, I had zip ties in my tool bag and used a screw (not as critical) from the other side to get home.
The bike is an 81 HD. I have been rebuding it since December. I just put new bars on it and had moved the controls around. Used 2 1/2 tubes of loctite and neglected to put any on the bolts holding the controls. One bolt wiggled out and over stressed the metal. It was a cheap lesson on attention to detail. Maybe sharing it will save someone else from an accident.
An outstanding graduate of jury rig 'A' school. Well done.
There is also another name for it, but I ain't going to say it.