How does the bracket mount to the wall?

Hello Sensei, Thank you for your question regarding the Delta ActivTouch® 9-Setting Hand Shower with Traditional Slide Bar / Grab Bar and I am happy to assist you today. Below are the steps to follow to install this grab bar as stated in the Maintenance and Installation Manual: A stud finder should be used to verify if there are any studs behind the marked locations. These are the points where you will later drill pilot holes for putting in the screws. Determine if plumbing, electrical or other obstructions (i.e. beads of adhesive ribbing as in some tub surrounds) are contained behind the wall. You will need to use a 7/64-inch drill bit to drill all holes into the wall and wood wall stud(s) at the marked positions. If installing slide bar/grab bar over ceramic tiles, the 1/4-inch carbide tip drill bit will be needed for drilling through the tile, in order to prevent damage to the tiles. Drill pilot holes through the tiles by using a 1/4-inch carbide tip drill bit. Once a hole has been drilled through the ceramic tiles, use the 7/64-inch drill bit to drill a pilot hole in the wood wall stud itself. Repeat this step for opposing end of the slide bar/grab bar. Using silicone sealant designed for wet applications, apply sealant into the drilled holes prior to installing the screws and on mounting flange surfaces that mate to the mounting wall to prevent water damage. Place slide bar/grab bar on aligning mounting holes with the holes in the wall. Insert the wood screws provided into one end of the slide bar / grab bar. Screw into wall and wall stud (hand tighten only). Securely tighten all mounting wood screws with a screw driver. If concealed mount slide bar / grab bar. is used, move cover plates over mounting holes and firmly press against the wall. Please feel free to give us a call if we can assist you with anything else going forward at 800-345-3358. Thank you, Brandy Delta Faucet Company Customer Service