• Carbon Steel Material: Made with galvanized carbon steel, providing high strength and good corrosion resistance thanks to its zinc coating. • Excellent Substitute: Ideal for replacing industrial and construction fasteners, ensuring confidence after strict quality control. • Hexagonal Design: The hexagonal sleeve with 6 sides offers excellent angular granularity for tools. • Function: Used to install bolts, studs, or machine screws, joining two parts into one. • Wide Range of Uses: Perfect for appliances, offices, communication equipment, ship assembly, and other machinery industries. • Measurements: 4 cm wide, 1 cm high, and 5 cm long.