uxcell 300 Pcs Black Nylon 4.0mm Bottom Dia Push Clips Rivets Fasteners R4070 Product Name : Push Rivet;Part No. : R4070;Head Dia.(Approx.) : 8.0mm/ 0.31" Head Thickness(Approx.) : 1.8mm/ 0.071";Bottom Dia.(Approx.) : 4.0mm/ 0.157";Push In Height(Approx.) : 7.0mm/ 0.27" Total Height(Approx,) : 10mm/ 0.39";Fit for Panel Thickness : 4.5-5.5mm Material : Nylon;Color : Black Net Weight : 57g;Package Content : 300 Pcs x Push Rivet