Z-20 mounting screws size?

FAQ Z-20 Z Slider
1

Anyone know what size the 4 mounting screws are for the Z-20?
The screws are missing from the box.

2

The screws used are M5 SHCS

3

Thanks for info on size, but do you know how long they are?

4

The screws I have are 25mm - thread length 20mm

5

Thank you for the info !