The pivot axel anti-rotation system
The present invention uses a hexagonal gasket washer body to be fixed in conjunction with the outer edge of the hexagon at the top of the hexagonal nut.
It's suitable for assembling objects using screw bodies, the object needs to have an opening that matches the hexagonal gasket body.
The outer edge of the hexagonal gasket body is fixed in conjunction with the opening of the object, so that the screw body cannot rotate and the screw will never loosen. The screw has a good anti vibration effect.