Wide application: widely used in household and office electrical appliances, communication equipment, ship assembly and other machinery industries. These hex nuts will be a good substitute for industrial and construction fasteners. Excellent fastening performance: hex nuts are used to join bolts, studs or machine screws to fasten two parts together, making it a part. Thread design: hex nut has deep and clear long thread, tight connection, smooth surface, no burrs, conforms to inspection standards of strict quality and is safe and reliable to use. High-quality materials: the hex nuts are made of galvanized carbon steel, with high strength, good corrosion resistance, greater wear resistance, durability and long service life. Product information: the nut is hexagonal, it has 6 sides, which provides good angular granularity for the tool; There are four sizes for you to choose from to meet your different needs Specification: Condition: 100% brand new Material: carbon steel Surface treatment: galvanized Quantity: 10pcs Type Hexagonal size Weight: #01 M8*20.11mm, 88g/3.1oz; #02 M8*28, 10mm, 71g/2.5oz; #03 M8*30, 12mm, 167g/5.9oz; #04 M8*40, 12mm, 223g/7.9oz (optional) Package List: 10 x Hex Nut