Yongcun Snap Rivets Fastener Clips Automotive Rivet Hole 3mm 4mm 5mm Nylon Black Pack of 100pcs SRC40120 (Hole4.0mm L12.0mm) Go to amazon.com Related posts Top fastener clips 5mm FeatureSnap Rivets FastenerMaterial: Nylon 6/6Pack: 100 pcsSize:(ole4.0mm L12.0mmColor: Black; DescriptionRivet post pressure expands legs for fast and permanent fastening. Used widely for car fender, bumper, door or other car surface. Push in type, are made of the plastic material.