Nylon Retainers System of Measurement Metric Shank Diameter 12 mm Overall Length 27 mm Shank Type Expanding Material Nylon Head Type Dome Head Height 3 mm Head Diameter 18 mm Color Black Maximum Hole Diameter 12 mm Product Type Push-In Rivet Compatible Material Metal Wood Manufacturer Location Globally Sourced Body Length 24 mm Material Grade/Class Ungraded Package Quantity 15