Yes, they install between the window channel and the metal door frame. It squeezes right between and will hold in place even without the screws.
But put in the 2 screws through the holes in the shades.
Drill SMALL holes into the door frame metal at an appropriate angle - after the shade is pushed fully into position, screw in the screws.
You can see the screw in the 1st picture.
The shades are a quality accessory.
![Image](http://pic20.picturetrail.com/VOL1314/13774161/24815145/414455254.jpg)