Got a kayak project or repair? This set of 20 tri-grip rivets is exactly what you need. Made from high-quality aluminum, they're rust-proof, corrosion-resistant, and built to last in freshwater or saltwater conditions. Each rivet comes with a waterproof rubber gasket that creates a tight seal when installed, helping keep water out of your kayak. They're designed with a unique three-way split back that provides strong holding power, perfect for attaching rod holders, pad eyes, handles, or other accessories. The size is M5, which is common for many kayak fittings. You will need a rivet tool for installation (not included), but once they're in, they're secure and reliable. Whether you're customizing a new kayak, reinforcing old mounts, or doing routine maintenance, these rivets offer great value and performance. Keep your gear secure and your kayak ready for adventure with this handy hardware set.