I figured this would be a good place to ask this...I have two questions.

1. What size are the case screws that hold the top and bottom cases together? My XT 286 didn't come with any and it's kinda hard to pick up as a result...

2. Is this a serial number sticker or is it just nothing? I was trying to find something aside from "copyright 1985" to tell me when my XT 286 was built and this sticker is the only thing I found.

https://i.imgur.com/ecGJZgx.jpg