

Handlebar keeps coming loose (screws slowly unscrew during use).
Segway Ninebot F2
The top hex screw connecting my handlebar to my scooter keeps coming loose leading to the handlebars being wobbly. It doesn’t full come out and the handlebar doesn’t disconnect (still useable, just annoying).
I keep tightening the screw daily but it comes out within a day of use, I am not riding on rough terrain.
Any ideas as to what could be causing this?