The air vent in the top of the dash has a screen installed. The four screws holding it on have been cut off ( roughly ), leaving a jagged edge on top of the screw. After talking to BDH ( handy man to have down the road ), I decided to install a locking nut with "loctite" to ensure they do not become loose. After they were installed I filed the screws smooth, no sharp edges waiting to attack someones fingers.