200 pcs. Countersunk Cross Self Drilling Screw 410 Stainless Steel 19mm Nominal Length Feature:1. Corrosion-resistant 410 stainless steel: 410 stainless steel has high strength and hardness to withstand corrosion in mild environments2. Secure Material with Screws: Use self-drilling screws to secure the material to aluminum or sheet metal, saving time and money without pilot holes at the end of the drill bit3. Easy to drill: Stainless steel self-drilling screws are easy to drill into flat-head materials flush with the mounting surface4. Easy to lock without slipping: The cross groove drive provides uniform force, easy to lock, not easy to slip, convenient and quick to use5. Wide Applications: Self Drilling Screw is widely used in manufacturing, construction, engineering, assembly and other industriesSpecification:Item Type: Self Drilling ScrewMaterial: 410 Stainless Steel Product Size Specification:Nominal Length: Approx. 19mm/0.75inPackage List:200 x Self Drilling Screw