50 pcs. Carbon Steel Cross Self Drilling Screw 4.2x19mm Fastener Kit For Repair Feature:1. Stronger Fastening: The self-drilling screw has a transparent thread as well as smooth surfaces to better ensure a strong fastening.2. Reliable Operation: The cross-shaped pattern enables easy installation without slipping, as well as greater accuracy and work efficiency.3. Practical application: it allows for wide application in workplace, electrical product, communication equipment and so on.4. 50pcs per package: 50pcs screw is included, and the large quantity will meet a variety of work needs.5. Good Material: Adopt carbon steel high quality material which is galvanized and very durable for long-term use. Specification:Item Type: Self Drilling ScrewSurface Treatment: GalvanizedColor: SilverSize: Approx. 4.2x19mm/0.17x0.75inPacking List:50 x Flat Head Self Drilling ScrewOr50 x Round Head Self Drilling ScrewOr50 x Truss Head Self Drilling Screw