Quick Tip: The When, Where and What of Threadlocker

Published on June 6, 2025
Duration: 9:14

This guide details the proper application of different threadlocker strengths for various firearm components, emphasizing preparation and selection based on operational demands. Steve and Caleb from Brownells explain how to use shock/vibration resistant, medium strength (blue), high strength, and high-temp ceramic threadlockers effectively. Proper degreasing is crucial for adhesion, and understanding removal requirements (heat vs. hand tools) prevents damage.

Quick Summary

For firearms, select threadlocker based on application: Shock/Vibration Resistant for easy removal (scope rings), Medium Strength Blue for strong hold without heat (scope mounts), High Strength for permanent fixes (bolt actions, requires heat), and High-Temp Ceramic for extreme heat (muzzle devices, removable by boiling). Always degrease parts first.

Chapters

  1. 00:00Introduction to Threadlocker Use on Firearms
  2. 00:54Brownells Threadlocker Product Line Overview
  3. 01:10Shock and Vibration Resistant Coating Application
  4. 03:42Medium Strength Blue Threadlocker for Rugged Use
  5. 04:47Torque and Degreasing Best Practices
  6. 05:27High Strength Threadlocker for Permanent Fixes
  7. 07:05High-Temp Ceramic Threadlocker for Muzzle Devices
  8. 08:08Gas Block Threadlocker Ineffectiveness & Alternatives

Frequently Asked Questions

What are the different types of threadlocker for firearms and their uses?

Firearm threadlockers include Shock/Vibration Resistant (for scope rings, bipods), Medium Strength Blue (for scope mounts, removable without heat), High Strength (for bolt actions, requires heat), and High-Temp Ceramic (for muzzle devices, removable by boiling).

Why is degreasing important before applying threadlocker to firearm parts?

Degreasing screws and threaded holes with alcohol, acetone, or gun scrubber is crucial for proper threadlocker adhesion. Without it, the bond will be weak and unreliable, potentially leading to component loosening.

Can I use high-strength threadlocker on my AR-15 optics?

It's generally not recommended to use high-strength threadlocker on AR-15 components or small optics, as its removal requires heat, which can damage sensitive parts or finishes. Medium strength is usually a better choice.

How do I remove high-temperature ceramic threadlocker from a muzzle device?

High-temperature ceramic threadlocker, often used on muzzle devices and suppressors, can be broken by boiling the component in water. This method avoids the need for excessive heat that could damage the firearm.

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