Threadlockers & Retaining Compounds

20+ products

Expected delivery: Tue, Nov 17

Anaerobic threadlockers and retaining compounds cure in the absence of air between close fitting metal parts. Threadlockers keep bolts, screws and studs from loosening under vibration and also seal the threads against corrosion. Retaining compounds hold bearings, bushings, gears and sleeves on shafts and in housings. This section covers low, medium and high strength threadlockers in liquid, gel and stick forms, wicking grade threadlocker for pre-assembled parts, retaining compounds, pipe thread sealants and activator primers.

What to check before you order

  • Strength. Low strength suits small screws and adjustment screws. Medium strength suits most nuts and bolts that will need service. High strength is for permanent joints such as studs and needs heat to remove.
  • Wicking grade. Low viscosity green products penetrate already assembled fasteners.
  • Clean, dry threads. Oil reduces cure and strength. Clean parts first, and use a primer on inactive metals such as stainless, zinc and aluminum or in cold conditions, as the label directs.
  • Fastener size and gap. Each product lists a maximum thread size or gap it can fill.
  • Temperature. Check the service temperature range against the application.

Common questions

How do I remove a red threadlocker?

Heat the fastener to the temperature on the product label, then remove it with hand tools while it is hot. Wear suitable gloves.

Use with hex bolts and cap screws, see bearings and bushings, or browse adhesives, sealants and tape.

Popular threadlockers & retaining compounds

More in Adhesives, Sealants & Tape