Feature Highlights: 1. Complete 60-Piece Set – Includes 60 spring lock washers. Inner diameter: 8.1–8.7 mm / 0.32–0.34 inch; outer diameter: 12.1–13.1 mm / 0.48–0.52 inch; thickness: 2–2.2 mm / 0.08–0.09 inch. 2. Easy to Use – Designed to be placed under bolts or nuts to evenly spread the load once tightened, helping fasteners stay secure. 3. Durable 304 Stainless Steel – Made from strong, rust-resistant 304 stainless steel that resists oxidation and corrosion for long-lasting performance. 4. Wide Range of Uses – Fits screws, nuts, and bolts of matching sizes. Ideal for preventing loosening in machinery, metal plates, furniture repairs, outdoor structures, and electrical maintenance. 5. Secure Anti-Lock Function – Helps keep nuts, bolts, and screws from coming loose due to vibration, friction, or wear, ensuring your projects stay stable and safe. Product Details: This 60-piece assortment of M8 spring lock washers is made from reliable 304 stainless steel, offering strength and corrosion resistance. The split-ring design helps maintain tight connections by preventing fasteners from loosening over time. Use them in machinery, DIY repairs, construction, or maintenance work wherever a secure, vibration-resistant hold is needed. Specifications: - Quantity: 60 pcs - Material: 304 Stainless Steel - Inner Diameter: 8.1–8.7 mm / 0.32–0.34 inch - Outer Diameter: 12.1–13.1 mm / 0.48–0.52 inch - Thickness: 2–2.2 mm / 0.08–0.09 inch - Type: Spring Lock (Split) Washer