Step 6 · Install and Tighten Mounting Clips
Follow the sink manufacturer's instructions to install the mounting clips. These clips hook into a channel on the sink's rim and have a wingnut or screw that tightens against the underside of the countertop, pulling the sink up securely. Install clips every 6-8 inches around the perimeter of the sink. Use a screwdriver or nut driver to tighten them, alternating sides as you go to ensure even pressure. Tighten them until they are snug; do not overtighten, as this can damage the countertop or the sink.