Locks and seals metal threaded assemblies where high strength is required. Ideal for all Â¼ inch to Â¾ inch diameter nut and bolt assemblies where future disassembly is improbable. Provides a positive seal that resists most fluids. Prevents nuts, bolts and other fasteners from loosening due to vibration. Works in temperatures from -65°F to 350°F (-54°C to 177°C). Fixture tight in minutes. Protects against thread corrosion. Fills gaps up to .008 inches. Apply prior to assembly. Protects against thread corrosion. "262 Loctite® Functional Equivalent"