• Manufactured from high-quality white zinc, these M8 threaded inserts offer high hardness, corrosion and rust resistance, ensuring durability and stability. • The precision external thread design and hexagonal socket head ensure a firm and precise installation, preventing the nuts from loosening or vibrating. • Easy to install: simply drill a hole of the appropriate size and insert the nuts using the included hex key. • Compatible with various materials such as steel, pine, plywood, and composite panels, they are ideal for furniture connection and fastening. • Includes 100 pieces in total: 40 pieces of 15 mm, 30 pieces of 20 mm, and 30 pieces of 25 mm, along with a wrench to facilitate installation. • Package dimensions: 11 cm wide, 2.2 cm high, and 18 cm long. Total weight: 0.35 kg.