Wireless Joint

I'm in the final stages of building an LTE router around the Telit LM960A18 and am looking for some mounting pads. The ones on the ecommerce site look right, but I'm unsure of the screw dimensions. Does anyone know if these are M2, M2.5, M3? Bigger?

https://thewirelesshaven.com/shop/enclo ... ting-pads/

They are M3 screws

Thanks!