uxcell M3x45mm Hex Bolt Socket Head Cap Machine Screws Black 50Pcs Drive Type: Hex Socket; Head Style: Socket Cap Head; Material: 12.9 Alloy Steel Package Content: 50(+/-2%)pcs x Socket Head Cap Screws; Product Name: Socket Head Cap Screws; Thread Size: 3x45mm/0.12"x1.8"(D*L) Weight: 130g; Fastener Type: Socket Screw; Main Color: Black Thread Pitch: 0.5mm; Total Length: 48mm/1.9"; Head Diameter: 6mm/0.24" Head Height: 3mm/0.12"; Hex Key Size: 3mm/0.12"