Made of carbon Steel material,black oxide finish,hex socket head. Hex Bit ScrewdriveDrive left hand reversethread 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 inhome,office and factory appliance, communication equipments, ship assembly and other machinery industry. Features: Product Name: Left Hand Thread Bolt; Package Content: 1 x Left Hand Thread Bolt; Main Color: Black Material: Carbon Steel; Weight: 93g; Pitch: 2. 0mm Coating: Black Oxide Plated; Head Style: Hex Socket CHead; Thread Size: M16 x 40mm/0. 63" x 1. 6"(Dia. *L) Total Length: 56mm / 2. 2"; Thread Style: Fully Thread; Head Size: 24mm / 0. 94" (D) Hex Socket Width: 14mm / 0. 55"; Grade: 12. 9.
