If you are attaching your Studio proper iPad Vesa Mount to a VESA Standard monitor stand, the screws and nuts described below will in most cases suit your needs.
Unfortunately, we can not account for all of the different types of stands and mounts available on the market which may follow the hole position standard, but may not follow the same design overall. Therefore screw length may need to increase depending on your situation.
Quantity: 4 > M4 x 12 Countersunk screw
Quantity: 4 > M4 standard nut