600 spring washers in 9 sizes for versatile fastening across projects This comprehensive set includes 600 pieces in 9 different sizes to fit a wide range of bolts and fasteners. Rustresistant construction for lasting performance Made from grade stainless steel, these washers resist rust and provide reliable performance over time in diverse environments. Spiral design for secure holding and reduced loosening The unique spiral profile helps maintain bolt tension, reducing loosening during operation or movement. Efficient organization with a portable storage case Each washer set is stored in a clear case, enabling easy access and portable use for onthego projects. Specifications Quantity: 600 pieces Sizes: 9 different sizes Material: grade stainless steel Finish: Rustresistant Design: Spiral Storage: Clear case Applications and use scenarios Automotive maintenance and repairs Use with standard bolts in engine bays, chassis, and mechanical assemblies to maintain tension and prevent loosening during vibration. Furniture assembly and home projects Ideal for mounting brackets, shelves, and fixtures where secure, vibrationresistant fastenings are required. Equipment mounting and general repairs Suitable for securing panels, enclosures, and mounting hardware on machinery or electrical installations where corrosion resistance and reliable grip are beneficial.