4pcs M4x8mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black

About this item

• Product Name: Left Hand Thread Bolt; Package Content: 4pcs x Left Hand Thread Bolt; Main Color: Black; Material: 40Cr Steel
• Weight: 6g; Drive Type: Hex Socket Head; Head Style: Button Head
• Thread Size: M4; Total Length: 9.8mm / 0.39″; 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: 8mm / 0.31″

Made of 40Cr Steel material,black oxide finish,hex socket head,left hand reverse thread design.
Fixing component, industrial and construction fasteners.
To tighten a reverse threaded screw, you turn it counter clockwise.To loosen a reverse threaded screw, you turn it clockwise.
Used widely in home, office and factory appliance, communication equipments, ship assembly and other machinery industry.