The ADJUSTABLE & REUSABLE threadlocker for knives

Add VC-3 to your knife handle and clip fasteners to keep them from coming loose.

What it does

  • As a knife threadlocker, VC-3 acts like a shock absorber, isolating the screw from the frame while damping vibration.
  • Prevents the screw from rotating loose, yet always remains flexible allowing it to be adjusted, removed, and reused.

vc-3 on snowboard binding screw
vibra-tite vc-3 for firearms

Why it works

Vibra-Tite VC-3 Threadmate is one of the most versatile knife threadlockers available on the market. Unlike traditional liquid lockers which cure to form a hard bond, VC-3 is a blend of resins designed to remain flexible and absorb vibration. This unique difference makes VC-3 coated fasteners truly adjustable, removable, and reusable.

VC-3 vs Split-ring Lock Washer

vc-3 graph

What to know

  • An acrylic polymer that damps and absorbs vibration
  • Will not harden like anaerobic threadlockers
  • Works with metal, wood, plastic* (Nylon, PPE, PP) and more
  • Fasteners are easily adjusted, removed and reused
  • Works on fasteners of any shape or size; From tiny eyeglass screws to large construction bolts and on internal or external threads
  • If your knife came with a threadlocker pre-applied, we also manufacture and process fasteners for knife manufacturers around the world. To learn more about this process visit our ND Industries website.

*Allow the VC-3 to thoroughly dry before coming into contact with plastic.

apply vibra-tite vc-3
vc-3 shake well

How to use

Shake well before each use.

apply vc-3 Apply VC-3 a length of 1 to 1 ½ times the fastener diameter, filling threads 30-50%.
vc-3-time Although material will be dry to touch within minutes, allow VC-3 to dry for 10-30 minutes (the longer the better), depending on part size.
vc-3 laser site m&p 40 Knife screws are then ready to be installed or stored for later use. Once your part is setup and adjusted, you’re ready to hit the range.



YEARS in liquid form.

Applied to fastener; indefinite.


30-50% of the thread root area




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amazon vc-3 button

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