Item Type: Hex Socket Screws_x000D_ Material: Alloy Steel _x000D_ Color: Black _x000D_ Product Model: M4x6mm, M4x8mm, M4x10mm, M4x12mm, M4x16mm, M4x20mm, M4 nut_x000D_ M4 Screw Size: Approx.6mm / 0.24in, 8mm / 0.31in, 10mm / 0.39in, 12mm / 0.47in, 16mm / 0.63in, 20mm / 0.79in_x000D_ Weight: Approx.262g/9.2oz 1Various types of screws and nuts, a wide range of applications, convenient and fast plastic boxed. 2Made of high quality alloy steel material, provides strength and offers good corrosion resistance in many environments. 3Ideal for use in confined areas where the head needs to be flush or below the surface. 4Convenient to use and with good performance, fixing component, industrial and construction fasteners. 5Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry.1. Please allow 1?2mm error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 25 x M4x6mm 25 x M4x8mm 25 x M4x10mm 25 x M4x12mm 25 x M4x16mm 25 x M4x20mm 100 x M4 Nut 1 x Storage Box