Which screw tread for 6384 motor mounting screws? M4?

I have this 6384 motor: https://www.aliexpress.us/item/2251832813147338.html

Does anyone know what’s the tread specification for the screws on each side?
I tried M4 and it fits, but seems a bit loose, so just want to double check here if this is correct.

If you can screw them in then it’s the right screw, apart from that you need to ask seller since there are a few manufacturers of this type of motor, not necessarily the same thread on all variants.

I use M4 on mine. I reckon it will be the same for you.