Which screws are for what?

4 different types and lengths of screws included with my Ring Doorbell 2. Which screws are for what? How do I know? You don't and Ring doesn't know either. No mention of what's included in the box - or what SHOULD be included in the box - so I don't know if I got the proper contents. Ring doesn't want you to know what should be in the box, and Ring doesn't know what should be in the box. What do the security screws look like? There is no photo of them. Are they the same as the other small screws? I don't know. Ring doesn't want me to know. What is the mounting bracket? It seems that one was not included in my box. There is no photo of the mounting bracket in the literature. There is no list of package contents in the literature. Ring doesn't want me to know what the mounting bracket is. In sum, your product descriptions are **HORRENDOUS**. There is no description of what the products are, what is included with them, and what is included in the box, how to install it, etc... For example, there is no mention in the literature of a flat mounting bracket.