Arlo Essential Wired Video Doorbell - specs for the mounting screws?

[TTUEagle]

Can someone tell me the specs for the mounting screws for an Arlo Essential Wired Video Doorbell? I'm mounting the doorbell through a mounting plate and I need (2) screws that are 0.5" longer than those included. Because of the extremely tight clearance between the head of the screw and the back of the doorbell itself, I thought I'd ask before heading to Lowe's and buying the wrong ones. BTW, WHY is the clearance so tight!? I'm mounting into stone veneer and standard masonry screws will not work because the heads stick out too far and stop the doorbell from clicking into place. Any help is greatly appreciated!

[jguerdat]

I would just take one screw with me to Lowe's (or any other hardware store) and either visually determine what I need or ask for help. Just offhand I don't know the screw size but it should be easily determined visually.

As for tight quarters, the attempt is to make things as small as possible which is a rather difficult task given the design criteria.