Order by 24/7 by web, contact our sales reps or call by phone.
What you need, when you need it, all in one place.
Most orders ship same day.
Advice and support from knowledgeable professionals.
The ChemSet No Drill Undermount Sink Fastener from Chemical Concepts is a sink-mounting fastener designed to secure undermount sinks without drilling into the countertop substrate. The wingnut design allows the fastener to be hand-tightened during installation, eliminating the need for a drill or driver once the adhesive bond is set.
Undermount sinks in quartz, solid surface, and similar engineered countertops often cannot be drilled from below without risking cracking or delaminating the substrate. This fastener addresses that directly: the ChemSet system bonds the anchor point to the underside of the countertop using a chemical adhesive, so the installer skips the drill step entirely. The wingnut then draws the sink clip up against the sink rim by hand, holding the sink firmly in place while the adhesive cures. This approach suits installers working on finished countertops where drilling is not practical, and cabinet shops installing undermount sinks during production runs where speed and repeatability matter.
The fastener uses a 1/4-20 thread, a standard size that is compatible with a wide range of undermount sink clips and brackets. At 3/4 inches, the hardware is sized for typical countertop substrates. The wingnut is integral to the design, not a loose add-on, and it is what makes hand-tightening possible without reaching for a wrench or driver. The chemical anchor component is the system's core differentiator: it creates a bond at the mounting point rather than relying on mechanical penetration of the substrate.
Cabinet shops doing high-volume undermount sink installs benefit from the wingnut's tool-free tightening step, which reduces handling time per sink. Countertop fabricators working with quartz or solid surface slabs will find the no-drill approach reduces risk on finished material. Remodeling contractors completing a kitchen with a new undermount sink set into an already-fabricated slab can use this fastener where drilling from below is not an option. For any of these situations, this fastener keeps the install moving without adding a drill to the process.
The 1/4-20 thread is a common standard for undermount sink mounting hardware, so it is compatible with most undermount sink clips and brackets that use that thread. Confirm the thread specification on your clip before ordering.
The wingnut allows hand-tightening, so no driver or wrench is needed for the clamping step. You will still need to apply and cure the chemical adhesive anchor per the product's installation instructions.
Yes. The no-drill chemical anchor method is well suited to countertop materials where drilling from below is not practical, including quartz and solid surface substrates.
This SKU is the fastener with wingnut. If you need sink clips, brackets, or adhesive components, confirm whether those are included or sold separately before completing your order.
When the countertop cannot be drilled and the job needs to move, this ChemSet fastener with wingnut gives you a secure chemical-bond anchor and hand-tighten convenience in one piece of hardware.
Sold In: 1 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each |  CZ732C Mfr# CCH732G | ChemSet 732G Z-Shaped Stamped Metal Sink Clips |