Quick Tip: The When, Where and What of Threadlocker

Published on June 6, 2025
Duration: 9:14

This guide, presented by Steve and Caleb from Brownells, details the correct application of different threadlockers on firearms. It emphasizes selecting the right strength for the job, from vibration-resistant coatings to high-temperature ceramic compounds, and highlights the importance of proper degreasing for adhesion. The instruction covers common firearm components like scope mounts, muzzle devices, and bolt-action receivers, offering practical advice to prevent common mistakes.

Quick Summary

Learn from Brownells experts Steve and Caleb about the correct application of threadlocker on firearms. They detail four types: vibration-resistant, medium-strength blue, high-strength, and high-temperature ceramic, emphasizing proper degreasing and selecting the right type for components like scope mounts, muzzle devices, and receivers to ensure secure assembly without damage.

Chapters

  1. 00:00Introduction to Threadlocker Use
  2. 00:54Brownells Threadlocker Product Line Overview
  3. 01:10Shock and Vibration Resistant Coating Application
  4. 03:42Medium Strength Blue Threadlocker Use
  5. 04:47Torque and Degreasing Tips
  6. 05:27High Strength Threadlocker Application
  7. 07:05High-Temp Ceramic Threadlocker Application
  8. 08:08Gas Block Considerations

Frequently Asked Questions

What are the different types of threadlocker available from Brownells for firearms?

Brownells offers four main types: Shock/Vibration Resistant Coating for light-duty applications, Medium Strength Blue for general use like scope mounts, High Strength for permanent bonds on receivers, and High-Temp Ceramic for muzzle devices up to 2000°F.

Why is degreasing important before applying threadlocker to firearm screws?

Degreasing screws and holes with alcohol, acetone, or gun scrubber is crucial for proper adhesion. Without a clean surface, the threadlocker won't bond effectively, compromising its ability to prevent loosening.

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

It's generally not recommended. High Strength threadlocker requires heat for removal, which can damage optics or AR-15 components. Medium Strength Blue threadlocker is a better choice for scope mounts.

What is the best way to secure a gas block on an AR-15?

Due to the extreme operating temperatures, standard threadlockers are ineffective on gas blocks. The recommended method is to pin the gas block securely in place.

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