Material: Half moon washer is made of zinc alloy with zinc plating to prevent rust, ensuring durability. Easy to Install: Simply attach the buckle, position it as desired, and secure with appropriate screws (internal hole with threading). Easy to Use: These half moon nuts are designed for connecting furniture components; the 6mm hole diameter is compatible with M6 bolts. Features: Made from sturdy zinc alloy, these washers are ideal for joining or securing wooden furniture and are well-suited for various DIY woodworking projects. Application Range: Suitable for use with bed frames, wardrobes, cabinets, tables, bunk beds, headboards, pedals, and other furniture types. Hole Diameter: 6mm. Shape: Half Moon. Finish: Zinc Plating. Size: 25x11x8mm.