3/16" x 1" Tri Grip Rivets - 100PCS - Tri-fold Marine Decorative Pop Rivets with Waterproof O Rings,Tri-Grip Rivets for Boat Canoe,Aluminum Blind Rivets Tri Grip Boat Kayak Rivets,Trifold Rivets - Taipet

• 𝐅𝐈𝐓 𝐒𝐈𝐙𝐄- 3/16" hole size, head of tri grip rivet is about 3/8", black part is 1", Grip range is 1/6" - 1/2" (4MM-12MM). Rivet tool required for installation (𝒕𝒐𝒐𝒍 𝒏𝒐𝒕 𝒊𝒏𝒄𝒍𝒖𝒅𝒆𝒅). 𝐄𝐒𝐏𝐄𝐂𝐈𝐀𝐋𝐋𝐘 𝐅𝐎𝐑 𝐌𝐀𝐑𝐈𝐍𝐄 - The waterproof O-ring beneath the head to seal against water ingress in marine applications. The coating on the pop rivets is idea for the use of mounting accessories on your water crafts of all kinds. 𝐋𝐀𝐑𝐆𝐄𝐑 𝐀𝐑𝐄𝐀 𝐅𝐎𝐑 𝐒𝐔𝐏𝐏𝐎𝐑𝐓 - The body of the aluminum boat rivets splits into three distinct "legs" that spread out over a larger are, so rather than just squeezing two parts together, it spreads out to provide a larger surface area for support. This design provides greater surface bearing capacity and avoids the sag of the nail head or drilling through the riveting hole that occurs with ordinary rivets. 𝐅𝐎𝐑 𝐌𝐎𝐑𝐄 𝐌𝐀𝐓𝐄𝐑𝐈𝐀𝐋 - Normal rivets work great when the back layer is steel or another hard metal that the rivet can expand against and not pull through. These tri-fold Rivets work better when the back layer is just about anything else as the 3 legs expand more like some of the toggle dry wall anchors and grip more surface area. The tri-fold pop rivets worked perfectly when aluminum sheet metal and wood or plastic frames were involved. 𝐏𝐀𝐂𝐊𝐀𝐆𝐄 𝐈𝐍𝐂𝐋𝐔𝐃𝐄𝐃- 100 pcs blind rivet and 100 pcs waterproof rubber O-rings that makes the rivets durable in the deep water.