Hi, I got the sleeve pallets. Now I need to measure everything and get mu pallets made (Killer, I will send you the drawing). I would like to know which screws would I need. Someone told me that I would need "Counter screws" and regular 1/2" long screws. Link would be appreciated

Also, when you buy platens, are they supposed to come with drilled holes on the bottom or not?
Thanks in advance.