uxcell M6x30mm 10.9 Carbon Steel Countersunk Head Hex Socket Screw 50pcs Head Style: Flat Head,Countersunk Head; Material: 10.9 Carbon Steel; Package Content: 50(+/-2%)pcs x Countersunk Hex Socket Screws Product Name: Countersunk Hex Socket Screws; Thread Size: M6/0.24"(D); Weight: 309g Drive Type: Hex Socket; Main Color: Black; Thread Pitch: 1.0mm Total Length: 30mm/1.2"; Thread Length: 25mm/1" Hex Socket Width: 4mm/0.16"; Head Size: 12x5mm/0.47"x0.2"(D*H)