SBJ 24 Pieces of Bolt with Nylock Nut & Spring Washer are expertly crafted from high-quality zinc for superior corrosion resistance and durability. This set is designed for secure and vibration-resistant attachment of blades on tractor rotavators. The included Nylock nuts and spring washers provide extra locking strength, ensuring stability during heavy-duty agricultural operations. Ideal for maintenance and replacement, this bolt set helps maximize the performance and lifespan of your rotavator.