750PCS Metric SAE Nylon Lock Nuts Kit - 304 Stainless Steel, Assorted Sizes Features: Comprehensive 2-in-1 Kit: Includes 750 lock nuts, with 220 SAE and 530 metric sizes, covering 8 common sizes (6#32 to 1/2"-13 and M2 to M12). Perfect for various fastening needs. High-Quality 304 Stainless Steel: Made from A2-70 stainless steel, these lock nuts offer excellent corrosion and oxidation resistance, ensuring durability and extended service life. Nylon Insert Lock Nuts: Featuring nylon inserts for a secure fit with bolts, these lock nuts provide exceptional anti-loosening performance, superior vibration resistance, and reliable use even under repeated stress. Convenient Storage Box: Comes with a clear, labeled box to keep all sizes organized and easily accessible, minimizing loss and confusion. Wide Application: Ideal for securing components in furniture, automotive repair, machinery, construction, and small repairs, making it a versatile choice for both professional and DIY use. A reliable, all-in-one lock nut assortment kit designed to meet your diverse project needs!