• Manufactured from high-quality carbon steel with a galvanized surface, these screws offer high hardness, corrosion resistance, and durability. • Self-tapping design with clean and clear threads that facilitate penetration into materials, ensuring strong and balanced fastening performance. • Phillips round head screws with a mushroom-shaped flange for better fastening effect and comfortable, quick use. • Includes wall anchors for improved fixation and stability, ideal for use in homes, offices, garages, and more. • Suitable for various industries such as mechanical engineering, wind energy, aviation, and petrochemicals. • The package contains 400 pieces in various sizes: 50 pieces M3 x 8 mm, 50 pieces M3 x 12 mm, 50 pieces M3 x 16 mm, 50 pieces M3 x 20 mm, 30 pieces M4 x 12 mm, 30 pieces M4 x 16 mm, 30 pieces M4 x 20 mm, 30 pieces M5 x 20 mm, 30 pieces M5 x 30 mm, 30 pieces M5 x 40 mm, and 20 M6 wall anchors. • Package dimensions: 13 cm wide, 3.6 cm high, 19.5 cm long. Total weight: 0.54 kg.