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The Medium Strength Blue Threadlocker provides secure fastening, preventing bolts and nuts from loosening due to vibration or leakage. Its oil-tolerant formula ensures optimal performance even on slightly oily surfaces. Designed for long-term protection, this blue threadlocker protects metal parts against corrosion. As an NSF Registered Heavy-Duty Sealant, it contains no solvent, seals immediately, and prevents corrosion, seizing, and galling, ensuring the durability of fasteners. Certified to NSF/ANSI 61-G, it meets safety standards for various industrial applications.