The YakAttack Tri-Fold Rivet Kit provides a secure and durable mounting solution for attaching accessories to kayaks and other watercraft. Each aluminum rivet features a .187-inch diameter and a grip range of .157 to .472 inches, making them ideal for use in a variety of hull thicknesses. The tri-fold design ensures a strong, reliable hold by expanding behind the mounting surface, and the corrosion-resistant black finish blends seamlessly with most kayak hardware. These rivets do not include rubber o-rings, eliminating the risk of dry rot and long-term degradation. For best results and a watertight seal, use with a quality marine-grade sealant during installation.. .187' diameter with .157'-.472' grip range for versatile use Includes 10 high-quality aluminum tri-fold rivets Black finish resists corrosion and matches most hardware O-ring-free design avoids issues with rot or breakdown over time Ideal for mounting kayak accessories and components Use with marine sealant for a waterproof installation Quantity per pack: 10 Made in the USA