X1 controller missing screws

i found an X1 controller that had been tossed out of a high rise window…the casing was shattered but the motherboard still worked…i bought a new shell for it but i need 4 more screws…online stores are a ripoff…id like to go to home depot and grab substitutes but i dont know the thread size

i am not asking what size screw tip to use…i am asking the screw thread and length

thanx for any help