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Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 1.22-Fl Oz Bottle

Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 1.22-Fl Oz Bottle

Item # LT37477
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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 - 1.22-Fl Oz Bottle. Read our customer reviews of Loctite lubricants sealants adhesives. Call 1-833-496-1390 for expert service or order your lubricants sealants adhesives part number LT37477 by Loctite online at etrailer.com.
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Loctite Lubricants Sealants Adhesives - LT37477

  • Nut and Bolt Sealant
  • Sealant
  • 1.22 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: 1.22-fl oz bottle (36 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 areas in these diagrams illustrate where threadlocker should be applied in a variety of 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.



492140 Loctite Threadlocker 242 - Medium Strength - Blue

Alternate part number: 37477

Installation Details LT37477 Installation instructions


California residents: click here


Video of Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 1.22-Fl Oz Bottle

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Titan Hydraulic Trailer Brake Installation

All right, today on this old trailer, we're going to install the hydraulic brake assembly, part number T2351100. Now, we're going to start off our install with the hub already removed so we can show how to remove the vacuum plate. First off, we'll go ahead and disconnect the hydraulic line behind it. We're going to use a wrench to undo the fitting and remove the line. We're going to take the line and point it upward to help keep the fluid in the line. Next, we'll go ahead and unbolt the old vacuum plate.

There will be five nuts that we have to remove. We'll uninstall them and save the hardware and then we'll go ahead and reinstall them later. Once the hardware is removed, we'll go ahead and take off the vacuum plate. With the old removed, we can go ahead and install the new one. We're going to make sure that the wheel cylinder is situated towards the top.

We'll push it on and then we'll go ahead and reinstall the hardware. To secure our hardware, we're also going to use some Loctite, part number LT37477. With the new brake assembly in place, we'll go ahead and reinstall the hub. Next, we'll go ahead and reinstall the hydraulic line. We'll thread it back into the back of the wheel cylinder and tighten it down.

Our brake assembly is fully installed. Now, we'll go ahead and adjust the brakes. We'll peel off the cap at the bottom for the adjuster and we'll take our tool and go ahead and spin the adjuster to tighten up the brakes. Now, we're going to tighten them up just enough where the wheel stops moving by hand, and then we'll go ahead and back off about 10 clicks. There should be a slight drag when you're through.

Next, we'll go ahead and repeat the same process on the driver's side. With that, that will finish it for our install of the vacuum plate, part number T2351100.


Customer Reviews

Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts - 1.22-Fl Oz Bottle - LT37477

Average Customer Rating:  4.8 out of 5 stars   (113 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:

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:

1st time to use it and worth it




by:

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




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


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:

Review from a similar Threadlocker in Lubricants Sealants Adhesives


Was easy to install and stabilized the RV significantly.




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


I ordered multiple Roadmaster products from etrailer.com to rebuild a used Roadmaster Sterling towbar and prepare my car for its first time towing behind the motorhome. The etrailer people are great to work with, the prices are good, delivery is quick, and free shipping for all of my orders. The technical support at both etrailer and Roadmaster is the best.




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


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


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


Juste received order




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


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


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


works great!




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


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




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


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


Speedy arrival....



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See what our Experts say about this Loctite Lubricants Sealants Adhesives



  • What is Loctite 242 Made Of
    Loctite 242, # LT37477, is made of a liquid synthetic polymer that cures in an anaerobic environment, which basically means that it will not harden in the presence of air, and it cures when it is sandwiched in the threads between active metals like a nut and bolt. I have included a table, see link, that shows the make up of Loctite for you to review.
    view full answer...
    Image 1 for
  • Is Threadlocker Needed For Installation Of The Derale 3/4-16 Filter Nipple?
    I took a look at the instructions for the Derale 3/4-16 Filter Nipple # D98020, and it does not call for any threadlocker, however you could still use a less permanent threadlocker like the Loctite Threadlocker 242 # LT37477, which is a medium strength threadlocker and can still be disassembled relatively easily.
    view full answer...
  • Could The etrailer 16-Gauge Steel # HP36VR Be Installed Using Bolts Instead of Welding
    If you wanted to use bolts to attach these Redline Trailer Fenders, part # HP36VR, to your trailer instead of welding it you could. As long as you used enough bolts to secure this fender to your trailer you would not have a problem using bolts to install it instead of welding. I would recommend you use Loctite Threadlocker 242, part # LT37477, on the nuts and bolts to help prevent them from vibrating loose and causing the fenders to detach from your trailer while driving.
    view full answer...

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Info for this part was:

Employee Robert G
Expert Research:
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Video Edited:
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Updated by:
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