- Durable Material : Constructed from premium 304 stainless steel, these screws offer superior resistance to rust, oxidation, moisture, corrosion, and both acid and alkali environments. The high hardness ensures long-lasting performance. - Precision Standards : Each screw features a well-crafted thread produced using CNC cutting technology. This guarantees precise dimensions and a clean finish, adhering strictly to standard metric thread pitch. - Carefully Packaged : Each size is individually packaged to ensure usability and organization. The set includes 40 pieces of M4 x 30 mm, 30 pieces of M5 x 30 mm, and 20 pieces of M6 x 30 mm screws. - Versatile Applications : Ideal for a multitude of uses, these screws are perfect for assembling electromechanical products, mechanical devices, digital and electronic gadgets, household appliances, transport vehicles, trams, and automobiles. For example, use them in appliance repair, electronic device assembly, or vehicle maintenance. - Compatibility and Functionality : These metric screws are essential for various projects requiring reliable fastening solutions. Their compatibility with multiple applications makes them a great choice for both professionals and DIY enthusiasts.