uxcell M5 x 12mm Alloy Steel Hex Socket Button Head Screws Black 50Pcs Drive Type: Hex Socket; Head Style: Button Head; Material: Alloy Steel Package Content: 50(+/-2%) x Socket Button Head Screws; Product Name: Socket Button Head Screws; Thread Size: 5(M5) x 12mm/ 0.2" x 0.5"(D*L) Weight: 115g; Main Color: Black Total Length: 15mm/ 0.6"; Tensile Strength: 10.9 Head Diameter: 9mm/ 0.35"; Hex Key Size: 3mm/ 0.12"