Loctite LOC27731 High Strength Thread Locker 50 Ml

Product Description

The LOCTITE LOC27731 is a high-strength liquid thread locker designed to seal and secure threaded metal fasteners and fittings. The anaerobic formula fills the voids between mating metal threads and cures in place to prevent loosening caused by vibration, shock, and thermal cycling. Supplied in a 50 ml (1.69 oz) bottle, it delivers consistent coverage across multiple applications without waste. Plumbers, pipefitters, and mechanical contractors reach for high-strength thread lockers when a permanent, leak-resistant bond is required on metal-to-metal threaded assemblies under sustained load or pressure.

This product is suited for low- and high-pressure piping systems, threaded fastener assemblies, and industrial maintenance applications. The liquid formula seals instantly for low-pressure testing and achieves full cure strength over time, sealing to the burst strength of most standard metal piping systems. It is appropriate for use on steel, stainless steel, and other active metals common in HVAC, plumbing, and mechanical installations.

Key Features

• High-strength formulation provides a permanent, vibration-resistant bond on threaded metal parts
• Liquid anaerobic formula fills thread voids to prevent leakage under pressure
• Seals instantly for low-pressure system testing during installation
• Cures to the burst strength of most standard metal piping systems when fully hardened
• 50 ml bottle format provides controlled dispensing for repeat use

Compatibility

Designed for use on threaded metal pipe and fastener assemblies, including steel and stainless steel fittings typical in plumbing, HVAC, and industrial piping systems.

Installation Notes

Application is typically performed by licensed plumbers, pipefitters, or mechanical contractors. Clean and degrease all mating threads before applying the sealant to ensure proper cure and adhesion. Apply the liquid sparingly and evenly to the male threads before assembly. Allow adequate cure time per the manufacturer schedule before subjecting the joint to full system pressure.

Technical Specifications

• Strength Level: High Strength
• Volume: 50 ml (1.69 oz)
• Weight: 0.19 pounds
• Unit of Measure: Each
• UPC: 079340277317

Standard Information

• Brand: LOCTITE
• Manufacturer Part Number: LOC27731