Specifications: This is a series of kits in a compartment box, coming with different screw sizes, has a wide range in application. Not rust under the damp environment, strong anti-oxidation ability, corrosion resistance. Wafer head provides a greater bearing surface with a low profile head exposure. All of screws will be packed in a sturdy plastic box, can be used for a storage box. Type: Self Tapping Screws Material: Black Alloy Quantity: 210Pcs/Box Features: Anti-oxidation, Anti-corrosion, Assorted, All in One Note: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Black Zinc Plated Wafer Head Self-tapping Screws: 40 x M3.0x10 40 x M3.5x12 30 x M3.5x20 20 x M3.5x25 25 x M4.0x12 25 x M4.0x20 30 x M4.8x12 1 x Storage Box