Description The 4mm galvanized self-tapping screws are designed for installing fiberboard and drywall. With a durable and rust-resistant zinc coating, these screws are perfect for various applications. The 4mm size ensures compatibility with different scenarios, while the countersunk design allows for a flush and aesthetically pleasing installation. Features -Color:As Shown-Material:Galvanized iron-Size:1.60X0.70X0.70cm/0.63X0.28X0.28in-This self drilling screw features a durable and anti-rust zinc coating, ensuring long lasting use. -Designed for both fiberboard and drywall installation, this self-tapping screw is suitable for a variety of scenarios and applications. - Comes with enough quantity small screws , you'll have ample supply for your needs and projects. -The 4mm size of this screw makes it a versatile option for various installation scenarios, providing flexibility and convenience. -The countersunk design of this screw ensures a flush and aesthetically pleasing installation, adding a professional touch to your work. Packing list: 200 x screws