uxcell M2x20mm Alloy Steel Hex Bolt Socket Head Cap Machine Screws 30pcs Drive Type: Hex Socket; Head Style: Socket Cap Head; Material: Alloy Steel Package Content: 30pcs x Socket Head Cap Screws; Product Name: Socket Head Cap Screws; Thread Size: M2x20mm/0.08"x0.8"(D*L) Weight: 13g; Main Color: Black Thread Pitch: 0.4mm; Total Length: 22mm/0.83" Hex Socket Width: 1.5mm/0.06"; Head Size: 4x2mm/0.16"x0.08"(D*H)