Thread-locking adhesives

Thread-locking adhesives provide a reliable way to secure threaded fasteners against loosening caused by vibration, shock and thermal cycling, creating a durable chemical lock where traditional mechanical washers or locknuts may fail. These liquid or gel threadlockers cure in the absence of air between closely fitting metal threads, forming a solid polymer that fills micro-gaps and helps prevent both unintentional loosening and leakage.

Within the thread-locking adhesives family you will find low, medium and high strength grades, typically distinguished by colour, as well as wicking formulations for pre-assembled fasteners and semi-solid or pre-applied coatings for series production. Key parameters to consider include strength class and breakaway torque, viscosity adapted to small or large threads, temperature resistance, resistance to oils and operating fluids, as well as chemical and corrosion resistance of the cured joint. Many products are based on anaerobic methacrylate technology, designed specifically for metal substrates and for use in tight bond lines.

Thread-locking adhesives are widely used in automotive and motorsport applications, in machinery and equipment assembly, electro-mechanical and electronics housings, as well as in tactical gear, outdoor equipment and custom projects where reliability under field conditions is essential. They help secure screws and bolts in weapon accessories such as mounts and rails, stabilize fasteners in knives, tools and folding mechanisms, and protect threaded components in vehicles, bikes and off-road gear exposed to constant vibration.

Whether you configure a compact everyday setup or build and maintain specialized military, tactical or survival equipment, choosing the right thread-locking adhesive lets you match removable, serviceable or permanent retention to the criticality of each joint. Explore the selection of thread-locking adhesives available at MILITARY and choose solutions that improve the durability, safety and service life of your threaded assemblies in demanding real-world conditions.