Features Premium Material: These hex nuts are made of zinc plated carbon steel material, which provides strength and zinc cover offers good corrosion resistance. Strong Performance: This hexagonal sleeve nut adopts hexagonal shape has 6 sides that gives a good granularity of angles for a tool to approach from. Working Principle: The standoff nut fastener is used to fit bolts, studs or machine screws for fastening two parts together to make them one piece. Good Replacement: These screw nuts will be great replacement for industrial and construction fasteners. Wide Applications: The long hex coupling nut is used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry. Specification: Condition: 100% New Product material: carbon steel Surface treatment: galvanized Quantity: 2pcs Type: M8 * 66 Package list: 2 * Standoff Package List