Specification: Material: Stainless steel. Head style: Internal hexagon screws. Size and quantity: M8×(12-120)mm, 3/5/10 pieces. The hollow hexagonal bolts are made of high-quality 304 stainless steel, which provides them with durability, corrosion resistance, and antioxidant properties. Their unique design, without burrs and with internal and external non-slip threads, ensures stable installation in furniture such as beds, chairs, cribs, and cabinets. These bolts are essential for the installation of combined furniture in the home. They are also widely used in the appliance industry, offices, communication equipment, ship assembly, and general machinery. Note: Please keep the products away from children to avoid accidental ingestion of small parts.