• 800 self-tapping screws with 8 different sizes (M2 x 4/5/6/7/8/10/12/16 mm), 100 pieces per size. • Made of high-quality carbon steel, hard and durable. • Rust and corrosion resistance, ideal for tough environments. • Sharp tip for drilling wood, furniture, and soft metal. • PP storage box for easy transport and organization. • Standard and precise thread, easy to install and lock. • Wide use in home, office, and store, ideal for drywall and furniture repair.