- 128-piece M8 set: screws, nuts, washers, and wrench for assembly - High-quality carbon steel with black treatment for maximum durability and corrosion resistance - Hex socket head screws provide greater torque capacity and resistance to slipping - Spring washers prevent loosening in vibrating environments; flat washers protect the working surface - Easy to install and remove, suitable for precise assemblies in tight spaces - Ideal for maintenance and repair of bicycles, motorcycles, and mechanical equipment that need to withstand heavy loads - Includes different lengths of M8 screws to suit various fastening needs - Practical and professional solution for technicians and DIY enthusiasts