NZNSML 40 Sets Hex Head Bolts Set M6 x40 mm Bolts and Nuts Machine Screws

• Practical Complete Set: NZNSML provides 40 sets of M6×40mm black hex bolts (thread diameter 6 mm, shank length 40 mm). Each set includes 40pcs corresponding M6 hex nuts, 40pcs spring washers, and 40pcs flat washers. The complete set of accessories easily handles various fastening tasks such as daily assembly and maintenance.
• High-Quality Material: NZNSML nut and bolt sets m6 are made of high-strength carbon steel (Grade 12.9) and comply with the DIN 933 standard. The black surface treatment offers excellent rust and corrosion resistance, along with good deformation and fracture resistance. M6 nuts and bolts maintain stable performance even in high-temperature, humid, and other harsh outdoor environments.
• Hexagon Design: NZNSML black hex nut and bolt sets feature a fully threaded hex head structure with deep and uniform threads. This ensures even force distribution during installation, effectively reducing the risk of thread stripping and misalignment. The hex head is compatible with various common tools, enabling easy installation even in tight spaces and improving assembly efficiency.
• Loosening Vibration Resistance: The combination of NZNSML black hex bolts and nuts with matching hex nuts, spring washers, and flat washers works synergistically to effectively distribute pressure at the connection points. This helps prevent loosening caused by vibration and enhances the overall reliability and safety of the fastening system.
• Versatile Application: NZNSML black hex nuts bolts and washers sets are suitable for various fields including construction engineering, machinery manufacturing, furniture assembly, and vehicle maintenance. They can reliably connect metal, wood, plastic, and other materials, and are widely used in key components such as machine tools, bearings, and couplings. They are a practical fastening solution for both industrial operations and household use.

NZNSML Black Hex Bolt Set is designed for diverse installation and maintenance scenarios, providing a stable and reliable fastening solution that easily meets needs ranging from home DIY projects to engineering applications. Multiple Size Specifications: M6x10mm-40pcs M6x16mm-40pcs M6x20mm-40pcs M6x25mm-40pcs M6x30mm-40pcs M6x40mm-40pcs M8x16mm-20pcs M8x20mm-20pcs M8x25mm-20pcs M8x30mm-20pcs M8x40mm-20pcs M10x16mm-15pcs M10x20mm-15pcs M10x25mm-15pcs M10x30mm-15pcs M10x40mm-15pcs Application Scenarios: Furniture Manufacturing & Repair: Ideal for structural connections in bed frames, tables, chairs, bookshelves, etc., providing sturdy and durable installation. Vehicle Maintenance & Repair: Widely used for fixing frames, brackets, and other parts on cars, motorcycles, and bicycles. Marine & Outdoor Equipment: With corrosion resistance, suitable for deck components, railings, hatches, and other humid environments. Model Making & 3D Printing Assembly: The precise structure is well-suited for assembling printed parts, housings, or brackets, ensuring a reliable and secure connection. DIY & Home Improvement: Perfect for self-build projects like garden sheds, shelving units, and mechanical structures. Industrial Equipment Maintenance: Used for routine inspection and part replacement in machine tools, conveyor systems, and other industrial facilities.