Description: 200Pcs M3 M4 M5 M6 M8 Hex Socket Cap Head Screws Kit with Box. Made of carbon steel for durability and great corrosion resistance. Environment-friendly, no pollution, high hardness. Many length choice in one set meet daily basic needs. Stored in a plastic case, easy to carry. Specification: Content: M3*3 20Pcs M3*4 20Pcs M3*6 20Pcs M4*4 20Pcs M4*6 20Pcs M5*5 20Pcs M5*8 20Pcs M6*6 20Pcs M6*10 20Pcs M8*8 20Pcs Package Includes: 1 Set M3 M4 M5 M6 M8 Screws