DFDU 2380PCS Metric Hex Socket Button Head Screw Assortment Kit M2 M3 M4 M5

DFDU 2380PCS Metric Hex Socket Button Head Screw Assortment Kit M2 M3 M4 M5

• 【2380PCS Metric Screw Assortment Kit】This metric bolt assortment set includes 2,380 pieces of hex socket button head machine screws, matching hex nuts, flat washers, and spring lock washers in four popular metric sizes: M2, M3, M4, and M5. Includes a variety of commonly used lengths for equipment repair, machinery assembly, routine maintenance, and DIY projects.
• 【10.9 Grade Alloy Steel Construction】 The screws, nuts, and washers are manufactured from 10.9 grade alloy steel, providing excellent tensile strength, wear resistance, and dependable fastening performance. Designed for repeated tightening, they resist stripping and deformation during installation.
• 【Black Zinc-Plated for Corrosion Resistance】Each screw features a black zinc-plated finish that helps improve corrosion and rust resistance for indoor and general-purpose applications. The smooth coating also delivers a clean appearance while helping extend service life in workshop and garage environments.
• 【Wide Range of Applications】 Suitable for assembling and repairing 3D printers, RC cars, robotics, electronic devices, drones, mechanical equipment, industrial machinery, automotive components, furniture, woodworking projects, and other DIY applications. The socket button head design offers a clean appearance while reducing snagging compared with standard socket head cap screws.
• 【Organized Storage Case for Easy Identification】All screws are sorted by size inside a storage organizer with clearly labeled sections, allowing quick identification and reducing time spent searching for the correct fastener. Convenient for workshops, technicians, homeowners, and professional maintenance.