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  1. Lubricants Sealants Adhesives
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  3. Nut and Bolt Sealant
  4. Sealant
  5. 0.2 oz
Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 0.20-Fl Oz Tube

Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 0.20-Fl Oz Tube

Item # LT37418
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This general-purpose, blue threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts and thwarting corrosion of treated parts. Medium-strength formula isn't permanent, easing disassembly. Fastest Shipping and Guaranteed Lowest Prices for Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 0.20-Fl Oz Tube. 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 LT37418 by Loctite online at etrailer.com.
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  • Reviews (100)
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Loctite Lubricants Sealants Adhesives - LT37418

  • Nut and Bolt Sealant
  • Sealant
  • 0.2 oz
  • Loctite

This general-purpose, blue threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts and thwarting corrosion of treated parts. Medium-strength formula isn't permanent, easing disassembly.


Features:

  • General-purpose, medium-strength thread-locking liquid keeps nuts and bolts securely tightened
  • 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: 0.20-fl oz tube (6 mL)
  • 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:
  • Bolts for drive shaft, valve cover(s), water pump, oil pan and shock absorbers
  • Nuts for rocker arm adjustment
  • Studs and mounting screws for carburetors
  • Bolts used in trailer hitch installation
  • Small fasteners
  • Motorcycle mirrors, fenders and handlebar brackets
  • Boat fuel pumps and cable anchors
  • Industrial diesel injectors, manifold bolts and differential cover mounting bolts


The shaded portions of these diagrams illustrate where this threadlocker is applied in several types of threaded assemblies:



diagram of threadlocker placement

diagram of threadlocker placement


Threadlocker 242 is applied as a liquid 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 242. This is especially helpful when you are applying the adhesive to any material, active or inactive, in colder temperatures (below 70 F).



OEM symbol

This product is OEM specified: It is approved to meet specifications of original equipment manufacturers.



487229 Loctite Threadlocker 242 - Medium Strength - Blue

Alternate part number: 37418

Installation Details LT37418 Installation instructions


California residents: click here



Customer Reviews

Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 0.20-Fl Oz Tube - LT37418

Average Customer Rating:  4.9 out of 5 stars   (100 Customer Reviews)

This general-purpose, blue threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts and thwarting corrosion of treated parts. Medium-strength formula isn't permanent, easing disassembly.

by:

This is a really solid base plate. Installation for the Pontiac Vibe was is definitely more involved that installing the alternative (Road Master). The Road Master base plate just bolts through existing bumper holes and an engine mount. This base plate is bolted directly to the frame just behind the bumper, with four 3/8" grade 5 bolts in holes you have to drill after clamping the base plate in place. I found it easy to get the required height (3/4" below bumper) but simply using a 1x3 piece of lumber. You also have drill a 1.25"hole in the frame to gain access to the inside of the frame. Tricky part of this install is getting the nuts, which are welded to a 1" plate and a ~14" steel rods, into place to be line up with the holes. It is a little hard to see. I also recommend making sure the bolts actually thread easily on to the nuts before putting the nuts in the the frame. I had the misfortune of one of the either cross threading or jamming, and I ended up having to cut the bolt head off with a sawsall using a metal blade. The bolt had not gone very far into the nut before it jammed so I was just able to get the sawsall blade behind the head, and cut it off, holding the head with a pair of vice grips. If that hadn't worked I would have had to take the car to a shop with oxy-acetaline torch to have it cut off. I was able to fish the cut of bolt out for the frame with a bent coat hanger. The first photo is of the base plate after I cut off the bolt.
Blue Ox support was GREAT! I sent them and email explaining that I needed new nuts and bolts, and they sent the needed parts (at no charge!). I just had to put my install on hold for several days.

The second problem I had was in attaching the electrical harness recepticle to the tubes on the to bar. One of the self tapping screws twisted off as I was tighting it. I ended up cutting of 1/2" of the tubes (with the sawsall) and then tapping the tubes with 1/4x20 threads, and regaining the length cut off with the bolt. My recommendation to blue ox, is that they tap these tubes with to 1/4x20, and provide regular bolts to attach the recepticle. The second picture showes the result.

When I showed the 3rd and 4th pictures to my mechanic, he was impressed and said, "That looks really solid!" The last picture shows the front of the car after I have started to assemble it (with the styrofoam padding on the bumper, and the draw bars in place.

The solidity of the Blue Ox engineering and the FABULOUS customer support has totally turned my into a Blue Ox fan. I'm glad my RV dealer suggested that I go with Blue Ox instead of the slightly cheaper solution, that would have been much less solid.



by:

Very good product.



by:

Have always used this great product.
Fast
service from merchant.


Comments
Outstanding, as always!
Mike N - 11/07/2017


by:

What can be said.....it works.....



by:



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


For the installation the instructions were good, but watching some videos made it much easier to take apart a brand new car. All went well. Installed on a 2020 Chevy Equinox 2.0



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


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!


Comments
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.
Jens R - 12/03/2020

by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Bolts have not fallen off yet... lol They are all still tight.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Good product.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Stuff works great.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


This stuff works! Used it to install my trailer hitch bolts.


Comments
Used on bolts for trailer hitch receiver.Still holding tight after 1-1/2 yrs.
Jeffrey - 04/08/2020

by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Product was exactly as advertised, and as I wanted. Delivered as stated. etrailer is a great company to work with. This is the second vehicle I have outfitted, and they have had great videos and directions with their products.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Juste received order



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


works great!



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Locks the threads so the screw doesn't back off. Its holding down a tongue pivot bolt and a anti-rattle bolt currently. Only time will tell if it stays put per long run. Put it was exactly as desired.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Bought this product after watching the video how to install base plates on 2014 Honda CR-V. If you read the instructions talks about checking the bolts periodically for torque, now I don't know how many people are going to spend 4 hours pulling off the front bumper to this. So for peace of mind use this product so bolts won't come loose.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Speedy arrival....



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


I have used the LocTite products for many years. They make several grades of thread locking fluids, each appropriate for specific uses. Their products do exactly what they say they will; and will secure threaded parts from vibration or lock them together permanently. Your toughest choice will be in determining which product is most appropriate for your use. My recommendation is to start with the lowest strength and work you way up as needed. Just remember that without special tools, permanent means permanent with this product. The lower grades are very strong in preventing vibratory loosening.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Reinstalling clutch, equipment manufacturer specifies using LOCTITE 262 on clutch reinstall. Unable to locate 262 except in large quantities in my area. Etrailer had the small quantity 262 and responded to my order immediately. Completed clutch reinstall and equipment is running fine. Thanks Etrailer



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Easy install and a HUGE difference in control. Along with the stabilizer you cannot go wrong.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Locktite makes very good products, and this is another one. Used for fasteners that are already assembled/torqued and it wicks into place. E-Trailer completed the order process and delivered the product as expected, so well-done to them.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Loctite 243 (blue) worked great on my Harley Road King Custom primary asse3mbly. Great service and fast shipping. Would recommend etrailer to anyone. Will buy from in the future.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


I am so glad I came across etrailer.com, They have what I need in stock, and show you how to use and or install the product.
They have great prices and fast shipping, What else could you ask for!



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Needed Loctite 262 to assemble my Harley Road King primary. Great service and fast shipping. Will buy from etrailer in the future.



by:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Product worked as advertised. Can't ask for more than that. etrailer.com was very good at expediting my order. Thanks


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Ask the Experts about this Loctite Lubricants Sealants Adhesives



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    When the install hardware of the Draw Tite hitch part # 75902 is installed and torqued to spec you wouldn't necessarily need to use Loc Tite 242 # LT37418, but it wouldn't hurt anything so if it give you some peace of mind then go for it. If the hardware has already been torqued though you shouldn't remove it and reinstall it as the hardware is considered one-time-use since the bolts stretch when torqued. Removing the hardware would require you to replace all of it.
    view full answer...
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    To install the Topline Bed Extender # BX4004-1 on your 2003 Ford Ranger, drilling will be required and there may be some trimming of your existing bedliner necessary. I have included a graphic showing where the drilling will need to be done. You may also be interested in the Loctite Threadlocker # LT37418 to ensure a tighter fit for the screws. I have included a link to instructions on the proper application of this product.
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    To install this DeeZee Specialty Series Storage Box # DZ6535P in the bed of your 2011 Ford Ranger you will require drilling through the box and the truck bed and then installing hardware of your choice. I would use at least 4, 3/8 inch Grade 5 or higher bolts, two washers on each bolt, one inside the box and one outside the bed, and nuts, along with Loctite 242, # LT37418, to be sure the nuts do not work loose. The location of the mounting hardware is strictly up to you and should be located...
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