Flush mountable sensors can be mounted in metal up to the active face. Non-flush mountable sensors have to protrude the metal,
they have larger sensing ranges.
Non-flush mountable uprox®+ sensors with integrated self-compensation can be embedded partially (see technical data).
Flush mountable uprox®+ sensors with integrated self-compensation can be recessed (see technical data).
The tightening torque must be observed with threaded types to prevent torsional stress to the sensor housing. You find the corresponding values on the data sheets.
If strong vibrations are likely, use adhesive liquid thread lock (e.g. loctite 242).