Sourcingmap 2pcs M4x20mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black

Product Name: Left Hand Thread Bolt; Package Content: 2pcs x Left Hand Thread Bolt; Main Color: Black; Material: 40Cr Steel Weight: 5g; Drive Type: Hex Socket Head; Head Style: Button Head Thread Size: M4; Total Length: 21.8mm / 0.86"; Thread Style: Fully Thread Head Size: 7.4mm / 0.29" (D); Hex Socket Width: 2.5mm / 0.1"; Grade: 10.9 Pitch: 0.7mm; Coating: Black Oxide Plated; Thread Length: 20mm / 0.79", Manufacturer: Sourcingmap