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The Disc-Lock Heavy Hex Lock Nut with Washer Zinc is an essential component for high-stress applications requiring a secure and durable fastening solution. Engineered to provide exceptional strength and vibration resistance, this locking nut maintains the bolted clamp load in the face of shock or vibration, preventing loosening and ensuring joint integrity. Its 1-piece construction eliminates the need for a separate washer, while its reusable design makes it ideal for a wide range of applications across various industries. Offered in imperial dimensions with Grade 5 (Class 8.8) or stronger bolts compatibility, the Disc-Lock Heavy Hex Lock Nut with Washer Zinc delivers superior performance and reliability for demanding fastening tasks.