uxcell M4 x 10mm Alloy Steel Hex Bolt Socket Head Cap Screws Black 100 Pcs Drive Type: Hex Socket; Head Style: Button Head; Material: Alloy Steel Package Content: 100(+/-2%) x Socket Button Head Screws; Product Name: Socket Button Head Screws; Thread Size: 4(M4) x 10mm/ 0.16" x 0.4"(D*L) Weight: 119g; Main Color: Black Thread Pitch: 0.7mm; Total Length: 12mm/ 0.5" Head Diameter: 7.5mm/ 0.3"; Hex Key Size: 2.3mm/ 0.09"