Would this be a problem in a moderately high vibrations / shocks environment (passenger car interior) ?
The screws are 1.8 mm thread diameter, 5 mm long, the PCB being some 90 x 60 mm with nothing too heavy hanging from it and. The screws are on its four corners.
the PCB is rather sparsely populated, about half of it not being covered by components. There are some 5 signal THT resistors, about 10 THT caps, a MCU, a radio transmitter, a PCB trace antenna, 2 SMT coils and 2 SMT caps, one connector block for the 12V power in, one grommet that secures the power cable to a side wall of the enclosure, one L78 SMD voltage regulator, and three THT protection components that are bulkier: