Metlok Private Limited manufactures High Strength Thread Locker for Permanent Locking and Sealing. Metlok Private Limited is an ISO 9001: 2000 certified company. High Strength Thread Locker for Permanent Locking and Sealing or My-T-Lok® 352 has medium viscosity, used for locking and sealing of threaded fasteners. It cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. The High Strength Thread Locker for Permanent Locking and Sealing is widely used to lock a variety of fasteners used in assembly of various engine and transmission elements of an automobile, truck or a tractor.