Threebond 1303AT000 Hi-Strength Anaerobic Threadlocker - 10ml

The ThreeBond 1303 Hi-Strength Threadlocker (TB-1303) is a premium anaerobic reactive adhesive and sealant engineered to permanently secure threaded fasteners against loosening, leaks, and corrosion. Supplied in a convenient 10ml bottle, this high-strength formula is trusted across powersports, automotive, marine, and industrial applications.

How It Works:

ThreeBond 1303 remains liquid while exposed to air, but cures spontaneously once sealed off from oxygen between close-fitting metallic surfaces. This anaerobic cure mechanism delivers an exceptionally strong, reliable bond that locks fasteners in place without the need for mechanical locking hardware such as spring washers, toothed washers, or nylon-insert nuts.

Key Features:

• High-strength anaerobic threadlocker formula — ideal for permanent fastener applications
• Designed for use on threads, screws, bolts, piping joints, gears, pulleys, and fans
• Cures spontaneously upon contact with metal surfaces in the absence of air
• Resists vibration, shock, and extreme mechanical stress once cured
• Eliminates the need for mechanical locking components (lock washers, nylon nuts, etc.)
• Suitable for engines, drivetrains, suspension systems, and other high-stress assemblies
• Compact 10ml bottle — easy to apply, minimal waste

Important Note: ThreeBond 1303 is a high-strength, infrequent-removal threadlocker. Disassembly after curing may require heat or specialized tools. This product is not recommended for fasteners that require routine removal. For applications requiring easier serviceability, consider a medium-strength alternative such as ThreeBond 1333 or 1360.

Cross-Reference Part Numbers: TB-1303 | 1303AT000 | TB1303