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Threadlockers

Threadlockers

Prevent threaded fasteners from loosening after they're installed and seal the threads to prevent leaks and corrosion using these threadlockers. They fill the spaces between threads to hold fasteners in place and form a barrier that keeps fluids in and corrosives out. Threadlockers are commonly applied to fasteners that will be subject to vibration, such as those on pumps, motors, and compressors.

General Purpose

Use general purpose threadlockers to secure fasteners in a range of applications where you don't need a specialized threadlocker.

High Threadlocking Strength (Red)

Loctite

Medium Threadlocking Strength (Blue)

Loctite

Low Threadlocking Strength (Purple)

Loctite

Military Specification

Count on these threadlockers to provide consistent, reliable performance. Also known as Mil Spec threadlockers, they meet exacting military standards.

High Threadlocking Strength (Red)

Loctite

Medium Threadlocking Strength (Blue)

Loctite

Low Threadlocking Strength (Purple)

Loctite

High Temperature

Secure fasteners in hot environments and on high-temperature equipment with these threadlockers, which keep their hold when exposed to high heat. Ideal for heaters, ovens, boilers, automobiles, and foundry applications.

High Threadlocking Strength (Red)

Loctite

Medium Threadlocking Strength (Blue)

Loctite

Oil Resistant

Get a full cure on oily or greasy surfaces with oil-resistant threadlockers. Also called oil-tolerant threadlockers, they maintain a strong hold when exposed to minor contamination from motor oil, cutting fluids, and rust-preventative lubricants.

High Threadlocking Strength (Red)

Loctite

Medium Threadlocking Strength (Blue)

Loctite

For Assembled Fasteners

Use these threadlockers to lock and seal fasteners that are already installed. The adhesive flows into narrow spaces to fill gaps around assembled fasteners, so there's no need to disassemble them. Ideal for instrumentation screws, electrical connectors, and set screws.

Medium Threadlocking Strength (Green)

Loctite

Lubricating

Keep large-diameter fasteners from loosening under heavy vibration by holding them in place with lubricating threadlockers. These adhesives provide extra lubrication to reduce friction on threads and maintain proper clamp loads for a secure hold. They're typically used on large bolts, studs, and nuts.

High Threadlocking Strength (Black)

Loctite

Food Grade

These threadlockers meet FDA standards for contact with food and can be used to secure fasteners on food- and beverage-processing equipment. They keep bacteria from growing between fastener threads and are commonly used on equipment such as conveyor systems, mixers, fryers, and ovens.

Medium Threadlocking Strength (Blue)

Loctite

No Mess

Avoid drips, spills, and leaks with these wax-like threadlockers. They come in a solid stick and are rubbed onto the fastener's threads to coat them. Great for overhead applications.

High Threadlocking Strength (Red)

Loctite

Medium Threadlocking Strength (Blue)

Loctite

Applicators

Apply threadlocking fluid one drop at a time at any angle without leaks or mess using these hand-pump applicators. They thread onto a bottle of threadlocker and release the same amount of fluid with each drop for consistent dispensing without waste. You can also adjust the size of the drops, making these applicators ideal for precision tasks such as securing small fasteners in electronics equipment.