In this video, I upgrade the three basement storage door catches on my 2011 Keystone Cougar fifth wheel trailer. I upgrade from the OEM plastic type catches to ones made of metal. They have a stainless steel mounting plate with an aluminum catch.
To install, I unscrewed the old catches, cleaned off the old sealant and installed the new metal catches using butyl tape to seal the backing plate and screw holes. These should be an improvement over the plastic catches which were easy to accidentally damage when washing the rig. Or they would get brittle in freezing weather and crack.
Video Detailing the New Door Catch Install
Another suggested alternative option to plastic or metal are magnetic catches. These are becoming popular on new RVs.