Mounting device for securing a sink to a countertop and method of using same

A sink mounting device includes a weld bracket, a movable clip member and a hanger assembly used to movably couple the clip member to the weld bracket. The weld bracket is secured to a side portion of a sink bowl and the movable clip is used to engage an overhanging portion of the underside of the countertop. The clip includes a base having an axially positioned through-opening, an elongated arm member which extends longitudinally in a direction axially from the base, a projecting finger, which extends laterally from the end of the arm remote from the base, and includes a locating flange which, when the sink mounting device is operated, engages the hanger assembly, weld bracket and/or sink bowl at a limit position to prevent further rotation of the movable arm about the axis.