Help identifying hardware on used Class C.

I have three of these items attached to my used ‘99 Coachmen Pathfinder. Two are attached to the forward face of the driver’s side upper cabinets. (Facing into the cab over bunk area. The third is on the passenger side outside wall about 12” from the bottom of
the wall. The hook looking apparatus swings out, but not very far. I’ve spent about 2 hours scouring the internet with no luck. Thanks in advance.