Undermount Sink Fastener Kit


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Securely install undermount sinks to granite, marble, concrete, or wood countertops with our ChemSet Undermount Sink Fastener Kit. This comprehensive kit includes 8 sets of undermount studs, sink clips, ChemSet 633 Epoxy, mixing cups, and sticks – everything you need for a drill-free, professional-looking installation.


  • Easy, drill-free installation on natural stone countertops
  • Strong, durable bond with ChemSet 633 Quick-set epoxy
  • Versatile design with 1-1/2″ diameter stud base for tight spaces
  • User-friendly: Sinks install easily with included wing nuts, lock washers, and sink clips
  • Comprehensive kit: Includes 25ml Hand Syringe of 633 Epoxy, mixing sticks, and cups

Kit Contents:

  • (8) M1-RB38-1/4-20×0.75″ Studs
  • (8) Z-Shaped Sink Clips
  • (8) Wingnuts
  • (8) Washers
  • (1) 633 Epoxy, 25ml Hand Syringe
  • (2) Mixing Sticks
  • (2) Mixing Cups


  1. Dispense adhesive: Remove cap from 633 Epoxy Adhesive and dispense a small amount until it flows from both sides (A&B)
  2. Mix thoroughly: In provided mixing cup, combine equal amounts of adhesive and mix with mixing stick until completely uniform.
  3. Clean surfaces: Clean bonding area and fastener with alcohol. Surfaces must be clean and dry.
  4. Apply adhesive: Apply 633 Epoxy to the fastener base and set in position on the underside of the countertop around the sink cut-out.
  5. Cure time: 5 Minutes of Working Time and then allow 45 minutes – 1 hour for adhesive to cure to reaching handling strength. (Full cure in 24 hours)
  6. Install sink: Once cured, place the sink, mount the sink clip, add a washer, and tighten with the wingnut

Additional information

Weight 0.05 lbs
Dimensions 6 × 6 × 6 in

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