Permatex Permanent Strength Threadlocker Red 6ml 19962This red treadlocker is perfect for providing extra security whe ninstalling fasteners. Desinged for use with fasteners 3/8" - 1" this product offers resistance to heavy shock, virbarionts, and environmental factors.Permanent Strength Threadlocker Key Features Protects threads from rust or corrosion; OEM Specified; Secures parts from virbattion, heavy shock, chemical, or environmental conditions; Permanent High Strength Locker; This threadlocker is ideal for assembly with air toolsm gear bolts, transmission shaft bolts, and cylinder block bolts. Permatex offers such outstanding strength that you need localized heat and hand tools to separate parts.