- Premium Quality: This 440-piece set of M3 screws is crafted from high-grade stainless steel, ensuring exceptional rust resistance and durability for long-term use. - Enhanced Hardness: Made from 304 stainless steel, these hex socket head screws offer high hardness and environmental safety, making them suitable for both professionals and DIY enthusiasts. - Organized Storage: The screws are neatly packaged in a transparent plastic box with 12 compartments, keeping them organized and easily accessible, so you can quickly find the right screw for your project. - Versatile Lengths: This set includes 13 different lengths of M3 hex socket head screws, providing versatility for various applications such as machinery assembly, furniture repair, and DIY projects. - Practical Applications: Ideal for use in home improvement tasks, professional repairs, and hobby projects, this kit is essential for landlords, handymen, and anyone needing reliable fastening solutions. - Compatibility: The screws are designed to work seamlessly with a variety of materials and applications, ensuring a secure fit for your tasks. - Long-lasting Performance: With their rust-proof feature, these screws maintain their integrity over time, providing peace of mind for your projects.