ubular Rivets Copper Plated 100 pack Size:7/16" Head Size: 1/4" (0.64cm) Post Length: 7/16" (1.1cm) Tube Diameter: 1/8" (0.32mm) Made from steel, these plated rivets are designed to last when set properly with the Zelitool Tubular Rivet Peening Tool #8099-00. Note: Rivet post length should be 1/16" to 1/8" longer than material riveted. Quality rivets for professional results. Great for dog collars, leashes, halters, bridles, bracelets, belts and more