Black UL94 V-2 Nylon Round Snap Push-In Rivet - Compatible Hole Diameter Range 4.1 - 4.2 mm (0.161 - 0.165 in) Compatible Panel Thickness Range 4.5 - 5.5 mm (0.177 - 0.217 in) Anchor Length 7.2 mm (0.283 in)