Many engineers don't know how to install this accessory. Determine the right height and the quantity of mounting bracket needed 2. Fix it on the gland. Tired of struggling to mount electrical boxes between wall studs? This expanding electrical box bracket makes installation fast, secure, and frustration-free — no measuring mistakes, no shaky boxes. more Sound or visuals were significantly edited or digitally generated. Simply slide the bracket to the width required and snap both ends of the bracket to the stud and secure with screws. What are the advantages? Components are easily adjustable. Dimensioning plays a central role here - both electrically and physically.