DFDU 960PCS M3 Hex Socket Bolts Assortment Kit, M3x6/8/10/12/16/20/25/30 mm

DFDU 960PCS M3 Hex Socket Bolts Assortment Kit, M3x6/8/10/12/16/20/25/30 mm

• 【960-Piece Bolt Assortment】This M3 metric screw set includes 8 common lengths: 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, and 30mm. It features hex socket head cap screws accompanied by matching hex nuts and washers, making it suitable for various repairs, assembly tasks, and DIY projects.
• 【12.9 Grade Alloy Steel】Made from high-strength 12.9 grade alloy steel for demanding fastening applications. This Screws Assortment Kit offer high tensile strength, wear resistance, and hardness, ensuring a secure, reliable hold that resists stripping or damage.
• 【Black Zinc-Plated Bolts and Nuts Kit】Finished with a black zinc-plated coating that helps resist rust and corrosion in everyday environments. The black finish also offers a clean, professional appearance that complements machinery, electronic equipment, and other dark-colored hardware.
• 【Precision Metric Threads & Hex Socket Drive】Precision-machined M3 metric threads deliver smooth installation and consistent engagement with the included nuts. The hex socket drive provides stable torque transfer, helping reduce slipping during tightening while supporting secure fastening.
• 【Organized Storage and Versatile Use】All 960 parts are neatly stored in a transparent, compartmentalized box with size reference labels for quick identification. This is an essential hardware kit for 3D printing, RC cars, drones, robotics, mechanical repairs, furniture assembly.