uxcell® M4 x 20mm 12.9 Alloy Steel Hex Socket Head Cap Screws Bolt Black 30pcs

Drive Type: Hex Socket; Head Style: Hex Head; Material: 12.9 Alloy Steel, Package Content: 30 x Socket Head Cap Screw; Product Name: Socket Head Cap Screw; Thread Size: (dxL)M4 x 20mm/ 0.16" x 0.8"(D*L), Weight: 76g; Main Color: Black, Thread Pitch: 0.7mm; Total Length: (L1) 24mm/ 0.94", Head Size: (Dxk) 7 x 4mm/0.28" x 0.16"(D*H); Width Across Flat (s): 3mm/0.12