Working on a kayak, canoe, boat, or any DIY project that needs a strong, reliable rivet? Check out these Aifeier tri-fold blind rivets. You get 50 pieces in the pack. They're made entirely of aluminum (no plastic parts), which makes them lightweight and highly resistant to rust and corrosion—perfect for wet environments. The cool feature is the tri-fold design: after you set them, the back side expands into three separate legs, creating three anchor points. This gives a much larger bearing surface than standard pop rivets, prevents the head from sinking, and provides awesome holding power. The grip diameter is 3/16 inch (4.8mm), the head diameter is about 3/8 inch (9mm), and the grip length is 1 inch (25mm). They can grip materials from about 1/25 inch up to 1/2 inch thick. You'll need a rivet tool to install them (tool not included). Great for marine applications, automotive work, trailers, RVs, plastic parts, furniture, appliances—anywhere you need a durable, permanent fastener. A handy pack to have in your workshop for all sorts of repairs and builds.