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  1. Lubricants Sealants Adhesives
  2. Loctite
  3. Nut and Bolt Sealant
  4. Sealant
  5. 0.32 oz
Loctite Blue Stick Threadlocker - Medium Strength - 1/4" to 3/4" Nut/Bolt - 0.32 Oz Stick
Loctite

Loctite Blue Stick Threadlocker - Medium Strength - 1/4" to 3/4" Nut/Bolt - 0.32 Oz Stick

Part Number: LT37643
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$14.28
Retail:$16.25
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This general-purpose, paste-like, blue threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts. Paste-like formula in convenient stick applicator is easy to apply and avoids mess. Fastest Shipping and Great prices for Loctite Blue Stick Threadlocker - Medium Strength - 1/4" to 3/4" Nut/Bolt - 0.32 Oz Stick. Read our customer reviews of Loctite lubricants sealants adhesives. Call 1-800-940-8924 for expert service or order your lubricants sealants adhesives part number LT37643 by Loctite online at etrailer.com.
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  • Reviews (16)
  • Q & A (0)
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Loctite Lubricants Sealants Adhesives - LT37643

  • Nut and Bolt Sealant
  • Sealant
  • 0.32 oz
  • Loctite

This general-purpose, paste-like, blue threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts. Paste-like formula in convenient stick applicator is easy to apply and avoids mess.


Features:

  • General-purpose, medium-strength, waxy threadlocker keeps nuts and bolts securely tightened
  • Waxy formula avoids mess
    • Won't leak in toolboxes or pockets
    • Doesn't drip when used overhead
  • Treated threads resist corrosion
  • Assembled parts can be taken apart easily with hand tools
  • Made in the USA


Specs:

  • Application: 1/4" to 3/4" (6-mm to 20-mm) nuts and bolts
  • Quantity: 0.32-oz stick (9 g)
  • Fixture cure (time required to become tacky): 10 minutes
  • Full cure (time required to reach full set): 24 hours
  • Temperature range (endurance limits of threadlocker): -65 F to 300 F


Applications: Valve cover, water pump, oil pan and drive shaft bolts, rocker arm adjustment nuts and carburetor studs



This diagram illustrates the use of this threadlocker:


diagram of threadlocker in use

Threadlocker is applied as a paste to the threads of screws, nuts and bolts before assembly to keep them securely tightened, even when vibration occurs. Threadlocker also seals out air, water and grime to prevent rust or other corrosion from forming. Nuts and bolts that aren't corroded last longer and can be taken apart more easily. Standard hand tools can break the seal of the threadlocker, allowing you to remove treated nuts and bolts, which then can be reused.


This threadlocker is anaerobic (hardens in the absence of air) and requires contact with an active metal to cure. Active metals (those that tarnish, corrode or rust) include brass, copper, bronze, iron, soft steel and nickel. If both parts to be joined are made of inactive materials, Loctite Klean 'N Prime primer must be applied to one of the surfaces for curing to occur. Inactive materials include plated parts, stainless steel, galvanized steel, magnetite steel, pure aluminum, titanium, magnesium, gold, silver, plastic, cadmium, Iconel, zinc, natural or chemical black oxide and anodized aluminum.


Klean 'N Prime can speed the cure rate of Threadlocker Blue Stick. This is especially helpful when you are applying the adhesive to any material, active or inactive, in colder temperatures (below 70 F).



506166 Loctite Blue Threadlocker Stick - Medium Strength

Alternate part number: 37643

Installation Details LT37643 Installation instructions


California residents: click here


Ratings & Reviews

5.0

16 reviews
This general-purpose, paste-like, blue threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts. Paste-like formula in convenient stick applicator is easy to apply and avoids mess.

by:



by:

Just what I was looking for at a great price.



by:

great! I have a set of these and ran out of the blue. Couldn't find it locally except in the size that holds only half as much. I was happy to find it here on etrailer. Great job etrailer.



by:

I will never go back to liquid threadlockers. This should be the industry standard. No mess, no waste, much more control, no spilling, and countless more benefits. I use it for small screws, so it makes it much easier to apply a more reasonable amount so I don't end up stripping the torx heads when I remove them from having to put too much torque on it to remove them. My only complaint about this product is that I didn't find it sooner!

Jens R. profile picture

Jens R.

12/3/2020

As I said in my previous review, I use this product on small screws, so I only use a little at a time. For that reason, I dont go through it very quickly, and after a year or seems to have maintained the vast majority, if not the entirety, of its effectiveness.



by:

Easy to use, and works perfectly for locking in threaded wheel studs.



by:

easy to use website, quick shipment. i will continue to do business with trailer.



by:

Excellent delivery time. Product is as described and installation was just like everyone said.



by:

applied on well. only time will tell if it works!



by:

worked good



by:

Great product, easy to use and setup time is short.



by:

Great website, great prices, and appreciate the fast shipping. Thank you very much



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See what our Experts say about this Loctite Lubricants Sealants Adhesives

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Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Raymond P
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Employee Jameson C
Expert Research:
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Employee John H
Expert Research:
John H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
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