JQK Closet Door Ball Catch Hardware, Stainless Steel Catch Adjustable with Strike Plate, Brushed Satin Finish 2 Pack, HBC100-P2

I received the order however there is no door plates for the ball catch to screw into. If you could please send those I would greatly appreciate it.

Are these appropriate for outdoor use in a wet environment (Pacific Northwest)?

I have a pantry room. Can it work for regular hinge door, or only for slinding door?

The height adjustment is so easy that won’t it eventually unscrew itself over time of shutting and opening the door and then fall down into the doo?