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Blue liquid threadlocker in a 50mL bottle

Vibra-TITE

Vibra-TITE 121 Medium-Strength Threadlocker Blue 50mL

SKU CH-R916-MWDC6

Medium-strength blue threadlocker in a 50mL bottle prevents fastener loosening from vibration

  • Product typeThreadlockers
  • Color and finishBlue
  • Medium-strength hold keeps fasteners secure under vibration
  • Blue colour allows quick visual confirmation during application
  • 50 mL bottle supplies enough fluid for multiple assembly tasks
  • Threadlocker formula prevents loosening caused by shock and thermal cycling
  • Listed by manufacturer in 2020 as current product formulation

Vibra-TITE 121 Medium-Strength Threadlocker

Vibra-TITE 121 is a medium-strength threadlocking adhesive supplied in a 50mL bottle. The blue liquid formulation secures threaded fasteners against vibration loosening while still allowing disassembly with standard hand tools. It suits automotive, industrial and general maintenance tasks where reliable thread retention is required.

Cures at room temperature without heat

The anaerobic compound cures at room temperature in the absence of air between metal surfaces. No external heat source or special equipment is needed for normal installation. Power draw and operational noise are not applicable to this chemical product.

Maintains holding power under continuous vibration

Once fully cured the adhesive resists sustained vibration and shock loads without relaxing. The bond remains stable across repeated thermal cycles and prolonged mechanical stress. It is not intended for applications requiring permanent high-strength locking or for use on non-metallic substrates.

How it compares

Measured against everything we stock in Caulking & Sealing Supplies, at today’s prices. Recalculated every night.

Price $15.99
Typical for this category: the median of 631 items is $16.99.

Specifications

Product
Brand nameVibra-tite
Product typeThreadlockers
Color and finishBlue

Questions about this item

How do I install Vibra-TITE 121 threadlocker, and what step do people get wrong?

Clean both threads thoroughly, apply a few drops of the blue liquid to the bolt, assemble and torque to spec; the common error is skipping the cleaning step, which prevents the anaerobic cure from bonding properly.

What maintenance or replacement will the Vibra-TITE 121 application need later?

The cured threadlocker remains effective until the fastener is removed; no reapplication is needed unless the joint is disassembled, at which point old residue must be cleaned off and fresh 121 applied.

What limit shows up first when the Vibra-TITE 121 joint sees sustained vibration and heat?

The medium-strength bond is designed to hold under normal vibration and operating temperatures; the practical limit is the fastener's own tensile strength, which the 121 formulation supports without loosening.

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