Features ★ ☆【 Material】These hexagonal nuts are made of zinc-plated carbon steel, which provides strength. The zinc coating offers good corrosion resistance. In addition, they will be an excellent replacement for industrial and construction fasteners. ★ ☆ 【Design Features】The hex nut adopts the standard hexagonal design, the thread is smooth, beautiful and practical; the surface is smooth and even, and the fixing effect is better; It is not easy to slide when rotating and it is easy to install. Hot tips: This product only applies to 51mm exhaust pipes and can be inserted directly into the air intake. ★ ☆ 【Widely Used】Rod fastening hexs are widely used in home and office appliances, communication equipment, ship assembly and other machinery industries. ★ ☆ 【Functions】Threaded rod fittings are used to screw bolts, studs or metal screws for the purpose of fixing two parts together to make one part. ★ ☆ 【Perfect service】every customer has a satisfying shopping experience is our goal. If you have any questions about our products, do not hesitate to contact us, we will answer you quickly. Features: 1. These hex nuts are made of zinc plated carbon steel material, which provides strength and zinc cover offers good corrosion resistance. 2. Hexagonal shape has 6 sides that gives a good granularity of angles for a tool to approach from. 3. These hex nuts will be great replacement for industrial and construction fasteners. 4. Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry. 5. Used to fit bolts, studs or machine screws for fastening two parts together to make them one piece. Specification: Condition: 100% Brand New Product material: carbon steel Surface treatment: galvanized Quantity: 2pcs Type: M8 * 66  Applicable to: 51mm dedicated Thread pitch: M8*1.25*66 Warm Tips: This product is only suitable for a 51mm exhaust pipe, which can be inserted directly into the air intake. Package list: 2 * Standoff Package List