<b>M4 Black color total 320 pieces. Come with the plastic box:</b><br> <br> <br> <b>List(Type,Length / Thread,Quantity)：</b><br> <br> 50PCS M4 Nuts<br> 50pcs M4 Washer <br> 20pcs M4*6mm Screws <br> 20pcs M4*8mm Screws <br> 20pcs M4*12mm Screws <br> 20pcs M4(6mm+6mm) Single Head <br> 20pcs M4(10mm+6mm) Single Head <br> 20pcs M4(15mm+6mm) Single Head <br> 20pcs M4(20mm+6mm) Single Head <br> 20pcs M4(6mm) Double-Pass <br> 20pcs M4(10mm) Double-Pass <br> 20pcs M4(15mm) Double-Pass <br> 20pcs M4(20mm) Double-Pass <br>