Loctite 57734 is a 50 ml tube of Loctite 577, a medium-strength, general-purpose thread sealant designed for locking and sealing metal pipes and fittings. This thixotropic, anaerobic sealant cures in the absence of air when confined between close-fitting metal surfaces, preventing leakage caused by vibration loosening or other stresses. It provides an instant low-pressure seal and is suitable for coarse threads. This product is ideal for applications requiring resistance to fuel, oil, coolants, and hydraulic fluids.