Just like the powerboost PCB, it's a good idea to thread the mounting hole with a machine screw. We only need one hole threaded since we're using a single screw to secure the PCB to the enclosure.
Mount PAM to enclosure
Fit the breakout over the spot near the powerboost 1000c and line up the holes. Hold the PCB in place while you fasten a single #4-40 3/8 flat phillips machine screw.