8pcs M4x16mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black

Key Features

• Product Name Left Hand Thread Bolt; Package Content 8pcs x Left Hand Thread Bolt; Main Color Black; Material 40Cr Steel
• Weight 14g; Drive Type Hex Socket Head; Head Style Button Head
• Thread Size M4; Total Length 18mm / 0.71"; 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 16mm / 0.63"

Product Description

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.