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Disc-Lock locking nuts provide superior performance in high-stress, vibration-sensitive areas and safety-critical applications. With a proprietary design that locks tighter under shock and vibration, these nuts maintain bolted clamp load and protect joint integrity. Made of Zinc-Plated Steel, they are durable and reusable with Grade 5 (Class 8.8), grade 8 (Class 10.9), and stronger bolts. Their interlocking cams ensure a secure fit while their smooth bearing surface allows for easy installation and removal with standard equipment. Ideal for aerospace, automotive, transportation, construction, and heavy machinery industries, Disc-Lock locking nuts provide superior performance in various applications that require unparalleled safety and reliability.