Product Description Package content: a box of screws, nuts and other parts 1. Wide application: the kit includes screws, nuts and washers of M2 M3 M4 M5 models of different sizes, which can be widely used in DIY to meet the different needs of professionals , hobbyists, homeowners, repair shops, etc. as a good replacement for damaged or missing screws. 2. Standard metric system: Our M2 M3 M4 M5 nuts and bolts are in line with the standard metric system, and the average error is less than 0.01mm. Nuts and washers increase contact space and reduce pressure to protect bolts and parts. The compact and uniformly strong thread is not easy to deform or slip during the rolling and installation process. 3. Superior Quality: Made of high quality stainless steel. The robust screw set offers good corrosion resistance in harsh environments such as high temperature, cold weather and high humidity. They are perfectly resistant to rust and oxidation, which allows them to last a long time and increase