Threebond Thread Locker
Threebond Thread Lockers: Precision Chemistry for Every Fastener
Threebond has spent decades earning the trust of engineers, motorsport technicians, and professional mechanics worldwide — and nowhere is that trust more evident than in its lineup of thread locking compounds. Founded and headquartered in Japan, Threebond has been partnering with leading product manufacturers worldwide for over 60 years, helping to advance society through safer, more reliable, and more cost-efficient solutions. That legacy of precision chemical engineering extends directly into their thread locker formulations, which are engineered to exacting standards for both the automotive aftermarket and professional manufacturing environments.
How Threebond Thread Lockers Work
Threebond thread-locking adhesives are typically anaerobic type, which use metal ions and the lack of oxygen to cure, preventing screws and bolts from loosening, leaking, or rusting. The anaerobic formulas will not harden as long as they are in contact with air, but once they enter a very small gap in metals and other materials, they harden quickly. This makes application clean and controlled — you have full working time on the bench, with a fast, reliable cure once the fastener is tightened.
Threebond's thread locking adhesives are designed to prevent nuts and bolts from self-loosening due to various factors, including tension relaxation of fasteners, sealing failures, self-loosening, and vibration. For anyone building or maintaining engines, drivetrain components, or chassis hardware, this combination of sealing and locking in a single product is a significant advantage.
A Range Built for Real-World Applications
Threebond offers thread locker options across multiple strength levels to suit a wide range of jobs. The TB1342 is a low-strength thread locking compound that is ideal for small nuts and bolts — fasteners are held securely but can be easily removed when necessary. For fasteners that are rarely or never removed, Threebond's high-strength formulations deliver a permanent, robust hold. The TB1360 High Temp variant incorporates anaerobic locking agents plus a heat-resistant element, making it well suited for exhaust hardware, engine bay fasteners, and other high-heat environments where standard compounds can soften or fail.
Beyond anaerobic chemistry, Threebond also offers a solvent type that can be used with plastic. This type is used primarily with small screws M6 or smaller, and provides 10–20% higher loosening torque than tightening torque. The TB1401 exemplifies this approach: threaded components assembled with TB1401 are designed to be removable with a force approximately 10–20% greater than that used for fastening, and being an air-drying resin, TB1401 cures completely even outside the confines of threaded sections — making it a viable replacement for conventional low-strength anaerobic thread lockers and tamper-proof paints, and applicable to plastic parts.
Resistance That Goes Beyond the Bolt
Threebond thread lockers are highly effective at locking and sealing any fastener — screws, bolts, and joints of any kind — inhibiting the development of rust, leaks, and corrosion, and are not affected by oils, chemicals, salt water, various gases, or organic solvents. This broad chemical resistance makes them an excellent choice for marine, off-road, and powersports applications where exposure to harsh environments is routine.
Whether you are assembling an engine for the first time, performing routine maintenance, or securing fasteners in a demanding environment, Threebond's thread locker lineup offers a chemically sound, professionally trusted solution. Browse the full selection of Threebond Thread Locker products to find the right compound for your application.