NZNSML 60 Pcs M5 Screws Black Countersunk Nuts and Bolts M5x8 mm Hex Socket Countersunk Bolt Carbon Steel Machine Screws with Nuts and Washers Metric Standard Thread for DIY Models Repairs

• Packaging Contents: NZNSMLcountersunk hex socket bolts set provides you with 60pcs M5×8mm black countersunk screws, 60pcs nuts, 60pcs spring washers, and 60pcs flat washers. No need for additional purchases, making it easy to handle various assembly and repair tasks. Convenient and practical.
• Premium Material: NZNSML M5 black hex socket countersunk screws are manufactured from high-quality carbon steel, heat-treated to achieve a high strength grade of 10.9. The black oxide surface coating further enhances corrosion resistance, ensuring stability in various environments and extending service life.
• Countersunk Design: NZNSML M5 black flat head hex socket cap screws set feature a standard countersunk head that can be flush-mounted into the workpiece surface, achieving a smooth, non-protruding assembly. The hex socket drive structure provides a larger torque-bearing area, reducing the risk of stripping or cam-out during tightening. Especially suitable for sheet metal, aluminum profiles, and precision instrument installation.
• Anti-Loosening Combination: The spring washers in the NZNSML black hex socket countersunk machine screws set kit provide constant tension, effectively cushioning vibration and shock. The flat washers distribute surface pressure, preventing damage to the workpiece. Working together with the screws and nuts, they form a triple anti-loosening mechanism, particularly suited for dynamic load scenarios such as motors and mobile equipment.
• Wide Applicability: NZNSML black countersunk hex socket bolts are not only suitable for conventional home applications like doors, windows, and cabinet assembly but are also widely used in industrial equipment brackets, 3D printer frames, model racing cars, audio reinforcement, and outdoor railings. They are an ideal choice for electronic repair, mechanical manufacturing, and creative DIY projects.

Whether for home repairs, equipment installation, or creative DIY projects, NZNSML black countersunk hex socket screw set can meet your diverse fastening needs. Multiple Sizes Available to Suit Various Assembly Scenarios This set offers a range of common specifications from M2 to M6, covering different length combinations to meet various assembly needs, from precision electronics to heavy-duty structures: M2 Series: M2×8mm / M2×12mm / M2×16mm / M2×20mm M3 Series: M3×8mm / M3×10mm / M3×12mm / M3×16mm / M3×20mm / M3×25mm / M3×30mm / M3×40mm M4 Series: M4×8mm / M4×10mm / M4×12mm / M4×16mm / M4×20mm / M4×25mm / M4×30mm / M4×40mm M5 Series: M5×8mm / M5×10mm / M5×12mm / M5×16mm / M5×20mm / M5×25mm / M5×30mm / M5×40mm M6 Series: M6×8mm / M6×10mm / M6×12mm / M6×16mm / M6×20mm / M6×25mm / M6×30mm / M6×40mm Wide Compatibility, Suitable for Both Home and Professional Use NZNSML black countersunk hex socket screws are suitable for everyday household applications like door/window fixing, cabinet assembly, and bathroom fixture installation, as well as widely used in model making, mechanical maintenance, 3D printer assembly, display stand construction, and outdoor facility reinforcement. Whether you are a engineer or a DIY enthusiast, NZNSML provides you with stable and reliable fastening solutions.