If you’re looking for the thread locker you’re in the right place. We spent a lot of time reviewing best thread locker to come up with the Ten that we think stand apart from the pack in style, functionality, and value. In this guide, we have reviewed all the products and generated the best options available today for you.

We analyzed and compared 46 thread locker sold for nearly 46 hours, and considered the opinions of 600 consumers. Following our last update, our favorite model is the AmazonCommercial Medium Strength Removable Anaerobic Threadlocker, 6 mL(0.20 FL OZ.), Blue. However, if you don’t want to spend extra then we have another vast option for you is Loctite Threadlocker Red 271,0.20 fl. oz(209741).

Below is a review of some of the best thread locker together with their extra features and functions. Wanna find the Top thread locker? Read the below list right the way.

Best thread locker

Image
Product Title
Score

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single
9.9

Loctite 1329467 243 Blue Medium Strength Threadlockers, 1.69 oz., 50 mL, 3/4
9.5

Permatex 24240 Medium Strength Threadlocker Blue, 36 ml
9.1

Loctite Threadlocker Red 271,0.20 fl. oz(209741)
8.8

Loctite 248 Blue Threadlocker Glue Stick: All-Purpose, Medium-Strength, Anaerobic | Blue, 9-Gram Wax Stick (PN: 37643-506166)
8.3

Vibra-TITE - 14600 146 Permanent Large Diameter High Strength Anaerobic Threadlocker, 1 liter Jug, Red
8.1

Permatex 25210 High Strength Removable Orange ThreadLocker
7.8

Loctite 26231 Red 262 High-Strength Threadlocker, 1.69 fl. oz. Bottle
7.4

AmazonCommercial Medium Strength Removable Anaerobic Threadlocker, 6 mL(0.20 FL OZ.), Blue
7.1

Loctite Threadlocker 242, 50mL Bottle, Blue
6.9

Image
Product Title

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single

9.9

Loctite 1329467 243 Blue Medium Strength Threadlockers, 1.69 oz., 50 mL, 3/4

9.5

Permatex 24240 Medium Strength Threadlocker Blue, 36 ml

9.1

Loctite Threadlocker Red 271,0.20 fl. oz(209741)

8.8

Loctite 248 Blue Threadlocker Glue Stick: All-Purpose, Medium-Strength, Anaerobic | Blue, 9-Gram Wax Stick (PN: 37643-506166)

8.3

Vibra-TITE - 14600 146 Permanent Large Diameter High Strength Anaerobic Threadlocker, 1 liter Jug, Red

8.1

Permatex 25210 High Strength Removable Orange ThreadLocker

7.8

Loctite 26231 Red 262 High-Strength Threadlocker, 1.69 fl. oz. Bottle

7.4

AmazonCommercial Medium Strength Removable Anaerobic Threadlocker, 6 mL(0.20 FL OZ.), Blue

7.1

Loctite Threadlocker 242, 50mL Bottle, Blue

6.9

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single


More Info and Images

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single

$5.70 $7.98
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Lock and Seal Fasteners: Prevents loosening of metal fasteners caused by vibration on small motors, mowers, and power equipment
  • Prevents Rust and Corrosion: Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers
  • Removable: Can be removed with hand tools
  • Easy and Quick: Sets in 10 minutes and fully cures in 24 hours
  • For 6-19mm Fasteners: Medium-strength formula for use on threads for 6mm to 19mm nuts and bolts

Loctite 1329467 243 Blue Medium Strength Threadlockers, 1.69 oz., 50 mL, 3/4″ Thread


More Info and Images

Loctite 1329467 243 Blue Medium Strength Threadlockers, 1.69 oz., 50 mL, 3/4" Thread

$14.58
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Size: 50 ml
  • Color: Blue
  • Characteristic odor
  • A general-purpose, medium-strength threadlocker with improved oil tolerance
  • Oil-tolerant curing on as-received fasteners without cleaning

Permatex 24240 Medium Strength Threadlocker Blue, 36 ml


More Info and Images

Permatex 24240 Medium Strength Threadlocker Blue, 36 ml

$23.46
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Secure Every Job – Keep bolts and nuts in place with Permatex Medium Strength Threadlocker Blue, the reliable solution that prevents loosening due to shock and vibration, locking parts securely and shielding threads from corrosion.
  • Perfect for Automotive & Beyond – With Permatex Threadlocker Blue, seal and lock bolts from 1/4" to 3/4" across various applications, including valve cover, water pump, oil pan, and drive shaft bolts – ideal for any job needing pipe thread sealant.
  • Perfect For Most Jobs- Permatex Threadlocker Blue Is Ideal For All Nut And Bolt Applications 1/4" To 3/4" (6mm To 20mm) And Eliminates The Need To Stock Expensive Lock Nuts And Lock Washers
  • Medium Strength for Easy Disassembly – Unlike permanent options, this threadlock holds strong but can be removed with hand tools, allowing easy access for maintenance or adjustments without stripping threads or damaging parts.
  • Suggested Applications- Valve Cover Bolts, Water Pump Bolts, Oil Pan Bolts, Drive Shaft Bolts, Rocker Arm Adjustment Nuts, Carburetor Studs, Intake Manifold Bolts

Loctite Threadlocker Red 271,0.20 fl. oz(209741)


More Info and Images

Loctite Threadlocker Red 271,0.20 fl. oz(209741)

$5.70 $7.98
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Lock and Seal Fasteners: Prevents loosening of metal fasteners caused by vibration on engines, machinery, and vehicles
  • Prevents Rust and Corrosion: Moisture-resistant formula protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers
  • Permanent Fix: Permanent seal prevents tampering and is only removable once cured by heating parts up to 500°F (260°C)
  • Easy and Quick: Sets in 10 minutes and fully cures in 24 hours
  • For Large Fasteners: Heavy duty, high-strength formula for use on threads for nuts and bolts up to 1 inch (25mm)

Loctite 248 Blue Threadlocker Glue Stick: All-Purpose, Medium-Strength, Anaerobic | Blue, 9-Gram Wax Stick (PN: 37643-506166)


More Info and Images

Loctite 248 Blue Threadlocker Glue Stick: All-Purpose, Medium-Strength, Anaerobic | Blue, 9-Gram Wax Stick (PN: 37643-506166)

$13.89
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • This medium strength anaerobic threadlocker offers the same locking strength and sealing capabilities as our traditional blue threadlocking liquid
  • Wax-like stick is conveniently packaged in a seld-feeding stick applicator
  • Well-suited for difficult repairs, as in overhead applications
  • Great for valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts and carburetor studs

Vibra-TITE – 14600 146 Permanent Large Diameter High Strength Anaerobic Threadlocker, 1 liter Jug, Red


More Info and Images

Vibra-TITE - 14600 146 Permanent Large Diameter High Strength Anaerobic Threadlocker, 1 liter Jug, Red

$144.18
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Lock and seal threaded fasteners
  • Stop fasteners from loosening from shock and vibration
  • Performs better than lock washers, bevel washers and other forms of mechanical locking devices
  • Alleviates rust-lock
  • Prevent leakage

Permatex 25210 High Strength Removable Orange ThreadLocker


More Info and Images

Permatex 25210 High Strength Removable Orange ThreadLocker

$10.98
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Orange Threadlocker can be removed with hand tools and does not require heating to achieve removal
  • 3X the strength of Blue Threadlocker
  • Permute Orange Threadlocker ensures that pieces will not loosen or back out over time
  • Ideal for High Vibration Applications
  • Use for: Automobiles, Motorcycles, Heavy Equipment, Marine and Industrial Applications

Loctite 26231 Red 262 High-Strength Threadlocker, 1.69 fl. oz. Bottle


More Info and Images

Loctite 26231 Red 262 High-Strength Threadlocker, 1.69 fl. oz. Bottle

$17.99
PRIMEPRIME
in stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Package weight :3.01Lbs
  • Country of manufacture: United States
  • Package quantity :1
  • Product type :BONDING ADHESIVES

AmazonCommercial Medium Strength Removable Anaerobic Threadlocker, 6 mL(0.20 FL OZ.), Blue


More Info and Images

AmazonCommercial Medium Strength Removable Anaerobic Threadlocker, 6 mL(0.20 FL OZ.), Blue

Amazon.com

Features

  • Medium-strength anaerobic adhesive for reinforcing threaded nuts, bolts, screws, and fasteners; 6 ml; blue
  • Fills tight gaps and stripped threading; helps prevent loosening due to vibration and stress
  • Helps prevent corrosion and rust
  • Ideal for use with aluminum, steel, plated parts, stainless steel, and special alloy; not recommended for thermoset plastics or in pure oxygen systems
  • Curing time of 10-30 minutes

Loctite Threadlocker 242, 50mL Bottle, Blue


More Info and Images

Loctite Threadlocker 242, 50mL Bottle, Blue

$18.99
PRIMEPRIME
out of stock
Amazon.com
Amazon price updated: October 14, 2025 1:29 am

Features

  • Loctite Threadlocker 242, 50mL Bottle, Blue

This guide identifies some of the best thread locker currently on the market and also includes an in-depth buying guide to help you make the right decision. If you didn’t find your desired one check out the Permatex 25210 High Strength Removable Orange ThreadLocker is also the most sold item in the market. If you feel that the information provided here is misleading, incorrect, or is removed from actual facts, then please do not hesitate to get in touch with us. We will always be there for you.