2pcs M4x20mm 10.9 Grade Flat Countersunk Head Hex Socket Left Hand Thread Bolt

Key Features

• Product Name Left Hand Thread Bolt; Package Content 2pcs x Left Hand Thread Bolt; Main Color Black
• Material 40Cr Steel; Weight 6g; Drive Type Hex Socket Head
• Head Style Countersunk/Flat Head; Thread Size M4; Total Length 20mm/0.8''
• Thread Style Fully Thread; Head Size 7.7mm/0.3"(D); Hex Socket Width 2.5mm/0.1"
• Grade 10.9; Pitch 0.7mm; Coating Black Oxide Plated

Product Description

Made of 40Cr Steel material,black oxide finish,hex socket flat 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.

Specifications