20 Pcs Tri-Grip Rivet With 20 O Rings Long Grip Tri-Fold Tri Bulb For Deep1691

20 Pcs Tri-Grip Rivet with 20 O Rings Long Grip Tri-Fold Tri Bulb for Deep1691 Package includes 20 pcs rivet kits and 20 pcs water proof O-rings, it makes the rivets in the deep water when use with the O-RingsAluminum body with aluminum mandrel, all aluminum No plastic; - and good stress makes you convenient and save times, A rivet tool is required for installation ( Tool not included)Size of hole is 5mm, of rivets is about 10mm, black part is 2.5cm, Detail measurement look for the 3th pictureTri-Grip rivet style, Back side spread out in 3 directions to hold the materials together and make them strong enough for mounting accessories such as a rod holderThese kayak rivets widely used in shipbuilding, containers, industries aviation, automobiles, furniture appliances and more; they work great on many applications on kayak like as handles, pad eyes, rod holders, etc.Colour: blackMaterial: metalSize: 5.9cmPackage Contents:20 x rivet kits20 x waterproof O-rings