【Reasonable Design】The hexagonal shape of the long rod nut has 6 sides, which provide a good angle granularity for the tool. 【Wide Range of Use】The carbon steel nut is widely used in household and office appliances, communication equipment, ship assembly and other machinery industries. 【Using Skills】The hex nut is used to assemble bolts, stud bolts or machine screws to fix two parts together to make them one piece. 【High Performance】These hex nuts will be a good substitute for industrial and construction fasteners. 【Preservative】The long nuts are made of galvanized carbon steel material with strength, and the zinc coating has good corrosion resistance.