This is a standard 2 ¼" instrument panel blank. It is designed to be flush with standard .063" instrument panels.
Plate accepts standard 6-32 brass nuts and the nuts sit fully embedded in the plate body. To cage the nuts a small amount of epoxy is recommended, but not required. Standard instrument screws will work as long as the minimum length meets or exceeds 1/4"
I printed this is eSun PLA+ and it has held up well in direct sunlight in an RV-9 (Bubble Canopy). If you are concerned about UV or Temp, print in PETG or other material.