M3x18mm 12.9 Alloy Steel Screw Cap Point Hex Socket Screws Bolts 30Pcs Drive Type: Hex Socket; Head Style: Hex Head; Material: 12.9 Alloy Steel Package Content: 30Pcs x Hex Socket Cap Screws; Product Name: Hex Socket Cap Screw; Thread Size: 3x18mm/0.12"x0.7"(L*D) Weight: 35g; Main Color: Black Thread Pitch: 0.5mm; Total Length: 21mm/0.8" Head Diameter: 6mm/0.24"; Hex Hole Diameter: 3mm/0.12"