About This

• This metric fastener kit contains total 1016 pieces M2.5 hex socket cap screws in 8 common lengths: 4mm,6mm,8mm,10mm,12mm,16mm,20mm,25mm, matched with matching hex nuts, flat washers, lock spring washers and a hex wrench. Each length is equipped with sufficient quantity to cover most small equipment repair, 3D printer assembly and furniture installation, no need to buy separate screws of different sizes.
• Our M2.5 bolts are forged from industrial 12.9 grade alloy steel, featuring high hardness, strong shear resistance and load-bearing capacity. The surface adopts black oxide anti-corrosion treatment, effectively preventing rust, oxidation and wear, can keep stable performance under long-term mechanical vibration.
• Comes with two types of supporting gaskets: flat washers for uniform pressure dispersion to avoid surface scratch; lock spring washers provide elastic tension to prevent nuts loosening caused by vibration. Combined with precise internal hexagonal drive design, the screw fits tightly with hex wrench, won’t slip or round out during tightening, perfect for precision electronic assembly.
• Standard M2.5 metric thread size with universal application scenarios: ideal for 3D printers, laptops, PC computer cases, electronic instruments, camera brackets, small machinery, furniture, cabinet, toy model assembly and maintenance. Very suitable for electricians, model makers, 3D printing enthusiasts and DIY handcrafters for daily precision fastening work.
• All screws, nuts and washers are placed in a transparent plastic storage box with labels, for quick size lookup and classification storage. Equipped with matching hex allen wrench for instant installation without extra tools. Compact box design is easy to carry for on-site repair, avoids messy scattered screws and loss.