American Standard Top Mount Sink Clips - AMS-791637-100

They are the mounting hardware that holds a top mount (drop-in) sink down to the countertop. The clips pull up against the underside of the counter and clamp the sink rim tight so the bead of sealant compresses evenly around the edge. They are a replacement/service part, not a sink.

No. The 791637-100 clips are for top mount sinks, where the rim sits on top of the counter and the clip pulls the rim down from below. An undermount sink hangs beneath the countertop and is carried by adhesive and mounting studs or brackets bonded to the underside of the stone, which is a different system entirely.

Usually, yes. A drop-in sink that lifts at the rim or leaks along the edge is almost always a clip problem: a clip has snapped, the screw has stripped, or the clips were never fully tightened. Replacing the clips with the American Standard 791637-100 mounting hardware, cutting the old caulk, re-bedding the rim and re-tightening evenly around the sink is the standard repair. If the countertop itself is swollen or delaminated where the clips bite, the counter has to be dealt with first.

They are American Standard service hardware, made for the clip channel or lip on American Standard top mount sinks. Other brands use their own clip profiles and channel spacing, so treat this as a match for an American Standard sink rather than a universal clip. If you are servicing a mixed set of sinks across a building, match the clip to the sink brand you actually have.

There is one version, ordered with no finish. That is normal for this part, since the clips sit under the countertop where nothing shows once the sink is set. Order by part number 791637-100.0070A.

Plan on silicone or plumber's putty for the rim seal, and a stubby or right angle screwdriver, since clearance under a sink cabinet is tight. The clips themselves are the clamping hardware. Anything on the drain side, tailpiece, strainer, basket, or supply connections, is separate and not part of this kit.