Grey snap caps.
These are the original larger sized snap covers found in Coleman and Fleetwood pop ups.
Screw covers can be used anywhere you need to secure an item with a screw but desire a clean finished look. These use a washer found here that the screw is inserted through then the cover is snapped into place.
Popular applications are under the bed mattresses and dinette systems.
Pack of 10 caps.
Measures 1/2 inch inside diameter, 1/4 inch tall
Part number 4739B2901