Keep-Nut - Set of 100 - 1-1/2" Posts with 2-Crown Nuts

Keep-Nut™ Press-In anchoring sink fasteners are the strongest and most efficient mounting system for attaching undermount sinks to granite, quartz, solid surface, porcelain, and a variety of other hard surfaces. Originally designed to support building facades, vertical wall panels, and furniture, the KEEP-NUT™ also offers exceptional performance for sink mounting.

Works on granite, marble, engineered stone, UHPC, porcelain, solid surface, glass, and composites.

• Quick Assembly by Pressure
• No Need for Resins or Adhesives
• Strongest Anchor on the Market
• Save Time & Money
• Can be drilled with standard tools (CNC, Grinder, or by Hand)
• Average Strength of 562 lbs per insert
• Crowns (or Teeth) Provide Axial Strength and Flex, providing Higher Strength

Each KEEP-NUT™ Set Includes:

• (1) KEEP-NUT™ (1/4-20 Thread) press-in self-anchoring insert. 2-crown, 6mm Height.
• (1) 1-1/2″ Allen Post (1/4-20 Thread) 
• (1) Wing Nut (1/4-20 Thread) 
• (1) Star Washer
• (1) “Z”-Shaped Sink Clip

CNC Installation: With the use of the 11.8mm CNC Drill Bit simply plot your holes around the sink and drill your hole to the correct depth. Once drilled, use the Go/No-Go depth gauge to test the hole and our setting tool to insert the KEEP-NUT™. When you arrive to the job site, use the Allen post, star washer, wingnut and sink clip to support your sink. 

Manual Grinder/Polisher Bit Installation: With the use of our 5/8-11 thread 11.4mm Manual Grinder Bit with Stop Collar plot each hole and drill to the correct depth. Then use the Go/No-Go Depth Gauge to test the hole and our setting tool to insert the KEEP-NUT™. When you arrive to the job site, use the Allen post, star washer, wingnut and sink clip to support your sink. 

Drill Bit Solid Surface Installation: With the use of our 11.8mm Drill Bit with Stop Collar plot each hole and drill to the correct depth. Then use the Go/No-Go depth gauge to test the hole and our setting tool to insert the KEEP-NUT™. When you arrive to the job site, use the Allen post, star washer, wingnut and sink clip to support your sink. 

U.S. Patent No. 10,473,141 (the ‘141 Patent)