200 Pcs M4 Countersunk Bolts and Nuts Assortment, Stainless Steel Flat Head Hex Socket Machine Screw Kit

• Premium Stainless Steel Construction: Crafted from high-grade stainless steel, this M4 bolt and nut set delivers exceptional hardness and torque resistance for reliable fastening performance. It features superior structural stability and density, resisting breakage, deformation, corrosion, and rust even in harsh environments. These fasteners maintain their integrity through repeated use, ensuring long-lasting durability for both indoor DIY projects and outdoor industrial applications.
• Flat Head Hex Socket Design for Effortless Use: The set’s flat head hex socket configuration provides an enlarged contact area that distributes force evenly across connected surfaces, preventing damage and ensuring a flush, neat finish. The hexagonal drive design pairs perfectly with standard allen wrenches, allowing for smooth, hassle-free tightening and loosening without slipping or stripping. This user-friendly design streamlines installation and disassembly, saving time on every project.
• Precision Thread Design for Secure Assembly:Each M4 bolt in this assortment features smooth, uniform threads with distinct, crisp lines that ensure consistent, tight engagement with matching nuts. The precision machining eliminates cross-threading and slipping during assembly, creating a firm, stable connection that won’t loosen over time. This thoughtful design enhances overall fastening reliability, making the set suitable for both light-duty repairs and heavy-duty equipment assembly.
• Versatile Applications Across Multiple Scenarios:This M4 screw and nut assortment is ideal for assembly, repair, and DIY tasks in offices, factories, homes, and workshops. It serves as a dependable fastening solution for machinery, communications equipment, electromechanical devices, marine gear, home appliances, engineering structures, and automotive and motorcycle components. Whether you’re a professional tradesperson or a hobbyist, this set meets diverse fastening needs with ease.
• Comprehensive 200-Piece Assortment with 5 Sizes: The kit includes a total of 200 pieces, covering 5 commonly used M4 lengths: 20 pieces each of M4x16mm, M4x20mm, M4x25mm, M4x30mm, and M4x40mm bolts, plus 100 matching M4 nuts. This well-balanced size selection caters to a wide range of fastening tasks, from small electronics repairs to larger furniture or equipment assembly. The abundant quantity ensures you have the right fasteners on hand for any job, eliminating frequent trips to the hardware store.

Premium 200-Piece M4 Countersunk Bolt & Nut Set - Stainless Steel Flat Head Hex Socket Fasteners for Industrial & DIY Projects Elevate your fastening toolkit with our high-performance M4 countersunk bolt and nut assortment, engineered for durability, precision, and versatile use across industrial, home, and workshop applications. Crafted from premium stainless steel, these flat head machine screws deliver exceptional hardness and corrosion resistance. The countersunk hex socket head design is optimized for efficient fastening. Each bolt features tightly machined, uniform threads that ensure a secure, stable connection. Organization is hassle-free with the included transparent, reusable storage box. All bolts and nuts are sorted by size, allowing you to quickly access the exact fastener you need without rummaging through loose hardware. This versatile set is suitable for a wide range of scenarios, from large-scale industrial assembly to small-scale home repairs and DIY projects. Key Features Material: High-hardness, corrosion-resistant stainless steel Colour: Sleek silver finish Quantity: 200 pieces in total Design: Countersunk hex socket head for even force distribution Package Includes 20 x M4x16mm bolts 20 x M4x20mm bolts 20 x M4x25mm bolts 20 x M4x30mm bolts 20 x M4x40mm bolts 100 x M4 nuts After-Sale Warranty If you have any questions or concerns about the product, please contact us promptly. Our team will provide you with a satisfactory solution as soon as possible. Warm Tips Please allow slight dimensional deviations due to manual measurement. Product colour may vary slightly from online images due to different monitor settings—please refer to the actual item for accuracy. Thank you for your understanding!