Features Made of high quality material, high strength and hardness, durable in use. Precision wire design offers a strong commitment to maximum holding power. Widely used in home and office appliances, wooden furniture, repairs and inventions. Various specifications in one set to meet your different needs. Comes with a case for quick access and protection. Specification: Material: zinc-iron Quantity: 200 pieces Features: Precision wire design offers a strong commitment to maximum holding power.Equipped with case for quick access and protection.Made of high quality material, high strength and hardness, durable in use.Various specifications in one set to meet different needs.Used widely in home and office appliances, wooden furniture, repairs and inventions. Package List: 30 x 4.2 x 19 self-tapping screws 30 x 4.2 x 25 self-tapping screws 30 x 4.2 x 13 self-tapping screws 30 x 4.2 x 16 self-tapping screws 30 x 4.8 x 13 self-tapping screws 30 x 4.8 x 16 self-tapping screws 30 x 4.8 x 19 self-tapping screws 30 x 4.8 x 25 self-tapping screws Package List