uxcell M3 Thread Dia Dome Head Nylon Cap Acorn Hex Nuts Black 50pcs Thread Size: M3/0.12"(Female.Diameter); Product Name: Cap Nuts Material: Nylon(4.8 Grade); Weight: 4g Package Content: 50(+/-2%)pcs x Cap Nuts; Main Color: Black Dome Head Size: 6x3mm/0.24"x0.12"(Max.D*Height); Total Height: 6mm/0.24" Hex Width: 6mm/0.24"; Fastener Type: Cap Acorn Nut