LOCTITE 248 Threadlocker Stick is a blue, medium-strength anaerobic threadlocking adhesive designed to secure and seal metal bolts, nuts, and studs. Its semi-solid wax-like format delivers clean, controlled application without dripping, making it particularly convenient for vertical and overhead use. The one-component product requires no mixing and cures between close-fitting metal threads when air is excluded, helping prevent loosening caused by vibration.

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LOCTITE 248 Threadlocker Stick Benefits

LOCTITE 248 Threadlocker Stick combines reliable medium-strength locking performance with the convenience of a portable applicator. Unlike liquid threadlockers that may run away from the target area, the stick can be swiped directly across the engaged thread region. This helps reduce spills, waste, and cleanup while allowing technicians to apply a coating wherever maintenance or assembly work is performed.

The cured adhesive locks threaded fasteners while also sealing the thread path against moisture and many industrial fluids. Its medium-strength formulation allows assemblies to be removed with ordinary hand tools for servicing. This makes the product suitable for equipment that requires dependable vibration resistance without permanently locking the fastener.

Applications for LOCTITE 248 Threadlocker Stick

Typical applications include pumps, gearboxes, presses, motors, conveyors, automotive assemblies, industrial machinery, power-generation systems, and general maintenance operations. It can be used on steel, stainless steel, aluminum, and plated metal fasteners. Henkel states that it works on passive metals without a primer and can cure through many light corrosion-prevention oils and cutting fluids found on as-received fasteners.

The no-drip format is especially useful when liquid products are difficult to control, such as fasteners installed on vertical frames, and repairs performed away from a fixed workstation. It is intended for metal threaded assemblies and is not normally recommended for thermoplastic parts unless compatibility has been confirmed.

LOCTITE 248 Threadlocker Stick Technical Performance

The product uses acrylic dimethacrylate ester technology and cures anaerobically. It is supplied as a blue, UV-fluorescent, semi-solid stick. Henkel lists a typical fixture time of approximately five minutes and a service temperature range from -55°C to 150°C. On M10 black-oxide steel nuts and bolts, published breakaway torque is approximately 23 N·m after curing under the stated laboratory conditions.

These values are typical technical data rather than guaranteed purchasing specifications. Actual cure speed and final strength depend on metal type, temperature, thread size, engagement length, surface cleanliness, and adhesive quantity. Passive metals or temperatures below 5°C may require LOCTITE SF 7649 Activator when faster curing is needed.

How to Apply LOCTITE 248 Threadlocker Stick

For best results, clean heavily oiled or contaminated threads and allow them to dry. Advance only enough product for immediate use, remove any surface skin from the stick, and apply sufficient material to fill the thread roots across the engagement area. A continuous band covering approximately two or three threads is generally suitable for through-hole assemblies.

Assemble the nut and bolt, then tighten to the equipment manufacturer’s specified torque within the available fixture window. Recap the stick immediately after application. For disassembly, use standard hand tools. If a long engagement length prevents removal, localized heat may be applied according to Henkel guidance before dismantling the assembly while hot.

Why Buy LOCTITE 248 Threadlocker Stick?

LOCTITE 248 Threadlocker Stick provides industrial buyers with medium-strength fastening security, clean application, broad metal compatibility, and convenient maintenance access. Its compact format supports toolbox storage, mobile repairs, production assembly, and overhead work without liquid leakage. Choose it when you need a threadlocker that reduces vibration loosening while remaining removable for future service.

Review the official Henkel LOCTITE 248 technical data sheet before qualification and use. Explore our industrial threadlockers for additional low-strength, medium-strength, high-strength, liquid, and stick-format fastening solutions.

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