Enhance your fastening projects with this comprehensive set of high-strength M3 Button Head Screws and Nuts, meticulously crafted with 10.9 grade steel for exceptional durability and reliability. This versatile screw and nut kit is designed to provide a secure and stable fastening solution, suitable for a wide range of applications in both industrial and construction environments as well as everyday home and office use. Key Features: · Premium 10.9 Grade High-Strength Steel: Ensures superior tensile strength and resistance to wear, making these screws and nuts ideal for demanding applications. · Button Head Hex Socket Design: Provides a low-profile, smooth head finish perfect for confined spaces and precise fastening tasks. · Comprehensive Length Range: Includes screws in multiple lengths (M3*5mm to M3*20mm) offering flexibility for various project requirements. · Large Quantity Kit: Contains a total of 300 pieces, including 180 screws and 120 nuts, fulfilling general purpose fastening needs and minimizing the need for frequent restocking. · Multipurpose Use: Widely applicable across home and office appliances, communication equipment, ship assembly, machinery industry, and other mechanical assemblies requiring secure fastening. · Black Finish: The sleek black color adds a professional, clean look while providing mild corrosion resistance. Specifications: · Fastener Type: Button Head Hex Socket Screws and Nuts · Material Strength: Grade 10.9 High Strength Steel · Color: Black · Sizes and Quantity:   - M3 x 5mm: 20 pcs   - M3 x 6mm: 20 pcs   - M3 x 8mm: 20 pcs   - M3 x 10mm: 20 pcs   - M3 x 12mm: 20 pcs   - M3 x 14mm: 20 pcs   - M3 x 16mm: 20 pcs   - M3 x 18mm: 20 pcs   - M3 x 20mm: 20 pcs   - M3 Nuts: 120 pcs · Weight: Approximately 200g / 7.1oz Package Includes: · 1 Box of M3 Button Head Screws and Nuts (Total 300 Pieces) This high-performance screw and nut set offers exceptional strength, multiple length options, and a generous quantity, making it an essential addition to your toolkit for both professional and DIY tasks requiring secure fastening in tight or confined spaces.