... 2.surface: zinc,nickel,chrome 3.free sample 4.after-sales service Specifications of steel Semi Tubular Rivet ... Material 1) Steel 2) Brass4 Diameter: 3.2mm, 4.0mm, 4.8mm, 6.4mm, (1/8'', 5/32'', 3 ... / 1.653.43 / 3.231.83 / 1.781.80.841.071.1216151.91 / 1.834.09 / 3.862 ... .41.471.551.7014132.39 / 2.294.88 / 4.602.54 / 2.492.51.551.651.801312½2 ... .56 / 2.464.88 / 4.602.72 / 2.672.71.681.801.9512½ ...