2 screws came with Eotech sight?

[Timbow]

I just got my new Eotech the other day and it came with 2 screws, one had a small hex head and the other has a large slotted head. I take it that only one is used and they are interchangeable but I'm not sure if I'm right. If so, which one are you supposed to use and why? Thanks.

Tim

 

[DIXIEDOG]

If you plan to pop your optic on and off you will want to use the large knurled head with a coin slot in it so you won't need tools. They are inter changable but one is for easier removal.