Carbon Steel MaterialThe M6 threaded rod connector is made of galvanized carbon steel, which provides strength, and the zinc cover provides good corrosion resistance. Excellent SubstituteThe long shank nut will become an excellent substitute for industrial and construction fasteners, and after strict quality control, you can use it with confidence. Hexagonal DesignThe long shank nut Bolt Screw Fastener is hexagonal with 6 sides, providing good angular granularity for the tool. FunctionThe hexagonal sleeve coupling nut is used to install bolts, studs or machine screws to fasten two parts together so that they become one. Wide Range of UsesCarbon steel hex nuts are widely used in home and office appliances, communication equipment, ship assembly and other machinery industries.