Rivets: Type - Snap Rivet; Material - Nylon; Color - White; Hole Size - nominal - 0.161" 4.1 mm; Fastening Thickness - Min. - 0.177" 4.5 mm; Fastening Thickness - Max. - 0.217" 5.5 mm; Installation - Tooless, Releasable; Length - 0.350" 9.0 mm; Head Height - 0.071" 1.8 mm; Head Diameter - 0.315" 8.0 mm; Flammability-Temperature Rating - Class 94V-0, Temp. Index 120 deg C; Material Specification - Type 6 nylon, RMS #52; Manufacturer Series - SR Series