Natural Nylon Male/Female Ratchet Snap-Together Rivet - Compatible Hole Diameter Range 6 - 7.1 mm (0.235 - 0.281 in) Compatible Panel Thickness Range 6 - 7.5 mm (0.235 - 0.297 in) Head Diameter 19.1 mm (0.750 in) Head Height 2.4 mm (0.093 in)