Well Nut Mounting Kit – 4 PackSecurely fasten a multitude of products onto thin walled structures with ease! Well Nuts work by expanding inside a pre-drilled hole, securely anchoring whatever it is you need to mount. These high tech, neoprene mounting nuts effectively seal out dirt and grime at the assembly joint and are great for mounting Scotty products onto kayaks.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.