Identify the Fastener Type

What happens here

With the decorative end cap removed, a Phillips head screw is clearly visible inside the base of the slide bar. The presenter explains that this is the screw that secures the bar to the wall. They also show an example of a toggle bolt, commonly supplied by Moen for mounting these fixtures. A toggle bolt expands behind the wall surface once inserted through a drilled hole, providing a secure anchor point when a wall stud is not present. This demonstration helps understand how the screw ultimately functions to hold the bar in place.

Goal: Determine the type of screw and mounting mechanism.