'Nylon Retainers, System of Measurement Inch, Rivet Shank Type Keyhole, Rivet Head Style Round, Rivet Body Material Nylon, Rivet Dia. 1/4 In., Rivet Length 29/32 In., Head Dia. 7/16 In., Head Height 1/16 In., Hole Size 0.250 In., Color Black, Package Quantity 25'