uxcell M8 x 80mm 12.9 Alloy Steel Hex Socket Head Cap Screws Bolt Black 10pcs Drive Type: Hex Socket; Head Style: Hex Head; Material: 12.9 Alloy Steel Package Content: 10 x Socket Head Cap Screw; Product Name: Socket Head Cap Screw; Thread Size: (dxL)M8x80mm / 0.3" x 3.1"(D*L) Weight: 313g; Main Color: Black Thread Pitch: 1.25mm; Total Length: (L1) 88mm/ 3.5" Head Size: (Dxk) 13 x 8mm/0.5" x 0.3"(D*H); Width Across Flat (s): 6mm/0.24"