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  1. Lubricants Sealants Adhesives
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Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube

Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube

Item # LT37420
Our Price: $9.35
Lubricants Sealants Adhesives

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This high-strength red threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts and thwarting corrosion of treated parts. Stands up to the worst shock, vibration and environmental conditions. Fastest Shipping and Great prices for Loctite Threadlocker 262 - High Strength - Up 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 LT37420 by Loctite online at
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  • Reviews (133)
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Loctite Lubricants Sealants Adhesives - LT37420

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

This high-strength red threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts and thwarting corrosion of treated parts. Stands up to the worst shock, vibration and environmental conditions.


  • High-strength thread-locking liquid keeps nuts and bolts securely tightened
    • Super-strong formula keeps connections tight even during the worst conditions of stress and vibration
  • Treated threads resist corrosion
  • Assembled parts require heat to be separated with hand tools
  • Made in the USA


  • Application: up to 3/4" (20 mm) diameter nuts and bolts
  • Quantity: 0.20 fl oz (6 mL)
  • Fixture cure (time required to become tacky): 5 minutes
  • Full cure (time required to reach full set): 24 hours
  • Temperature range (endurance limits of threadlocker): -65 F to 300 F


  • Cylinder block bolts
  • Ring gear bolts
  • Transmission shaft bolts
  • Recommended for some trailer hitch installations

The shaded areas of these diagrams indicate where this threadlocker should be applied in various types of threaded assemblies.

Diagram of threadlocker placement
Diagram of threadlocker placement

Threadlocker 262 is applied as a liquid to the threads of screws, nuts and bolts before assembly. The red, high-strength formula keeps connections securely tightened, even during the most severe vibration, shock and stress. Threadlocker also seals out air, water and grime to prevent rust or other corrosion from forming, ensuring that the connected assemblies will remain sound for a long time. Uncorroded assemblies come apart easier and can be reused.

This threadlocker requires heat (500F) to free parts for disassembly with hand tools. Five minutes' application of a torch may be required. Disassemble while parts are still hot.

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, zinc, galvanized steel, magnetite steel, pure aluminum, titanium, magnesium, gold, silver, plastic, cadmium, Iconel, natural or chemical black oxide and anodized aluminum.

Klean 'N Prime can speed the cure rate of Threadlocker 262. This is especially helpful when you are applying the adhesive to any material, active or inactive, in colder temperatures (below 70 F).

Lock Tight OEM symbol

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

487231 Lock Tight Thread Locker 262 - High Strength - Red

Alternate part number: 37420

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube - LT37420

Average Customer Rating:  4.8 out of 5 stars   (133 Customer Reviews)

This high-strength red threadlocker locks and seals a variety of threaded assemblies, preventing unwanted loosening of nuts and bolts and thwarting corrosion of treated parts. Stands up to the worst shock, vibration and environmental conditions.


The instructions and accompanying videos on your site made this a DIY installation that came out perfectly.


Used it for the towing equipment on our Jeep and it has done it's job by keeping all the bolts in the same position. Would highly recommend


Worked as expected.


Was easy to install and stabilized the RV significantly.


I ordered multiple Roadmaster products from 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.


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

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


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.


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.


Loctite is always a good thing!


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


Loctite used on base plate installation. Worked well as always.


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


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


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


I am so glad I came across, 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!


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.


Excellent product used it several times on some small nuts and bolts.


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


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


Perfect size for replacing 24 wheel studs on my 1975 Argosy.


Great product. Instructions easy to follow


Perfect installation. works as advertis ed..


Loctite worked great for front sight installation on a Glock. Service / delivery impeccable and timely.


Stuff works great.


The parts were as described during the purchase phase of my order. The prices and quality of parts were very good and de]livery and packaging efficient. I will refer this supplier to my friends!

Show More Reviews

See what our Experts say about this Loctite Lubricants Sealants Adhesives

  • Is there a Way to Lock D-Ring Shackles to Front Of Jeep Wrangler Bumper
    Most Jeep guys leave the D-rings inside the Jeep or torque down the pins so tight that it would take a very determined thief to get them. You can also try a thread locker like the part # LT37420 to make them even harder to remove.
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  • Securing Axle U-Bolts With Loctite
    Though it is not completely necessary to use something like Loctite's Threadlocker # LT37420, there wouldn't be any adverse affects either. Most U-Bolt kits do come with lock nuts making them more secure than standard nuts, but you can definitely apply # LT37420 to completely secure their purchase on the U-Bolts.
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  • Anti-seize Product Recommendation to Install a Trailer Hitch on a 2007 Honda Fit Sport
    For Draw-Tite trailer hitch # 24776 for your 2007 Honda Fit Sport there isn't a specific recommendation for anti-seize products for the installation hardware. Loctite # LT37616 would work fine. But if you are talking about thread locker then there is just one thing to consider: how difficult do you want it to be to remove the hardware? If you use blue Loctite # LT37643 then the hardware can still be removed using hand tools. But if you use red Loctite # LT37420 then power tools would have...
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  • What Color or Strength Loctite Do I Need to Install Wheel Studs?
    Yes, you will want to use the Loctite Threadlocker 242 - Medium Strength - 1/4" to 3/4" Nuts/Bolts item # LT37418 to install the Redline Replacement wheel studs item # 25-53. This is the blue one you will be able to remove your studs in the future if you need to replace them. The red Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube item # LT37420 is the one you would either want to use or stay away from if you don't plan on removing the bolt.
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  • Lippert 6-Point Level-Up System Foot Pad Torque Requirement
    For the 6-point Level-Up System by Lippert, I made a call to the manufacturer to ensure you would receive correct information. Lippert said that when you bolt the footpads to the jacks, you need to torque them to 132 ft-lb. They said to make sure to use Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube, # LT37420 on the footpad bolts and do not try to remove the bolt once it is tightened as removing the bolt could result in damage to the cylinder. It...
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  • Tightening Nutset In Tailgate Of 2016 Chevrolet Silverado
    I called my contact at DeeZee and asked about the installation of the Tailgate Assist, part # DZ43102. They told me that you can remove the screw and then put some Loctite like part # LT37420 on the threads of the screw and snug the screw back down. Let it sit a couple hours and it should secure the nutset for you.
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  • Can You Use Loctite On The Andersen 5th Wheel Hitch Set Screws
    I spoke with Andersen and their tech stated that you can use some Loctite # LT37420 to help prevent the set screws on your Andersen Hitch # AM3200 from needing to be retorqued as often. He also stated you may need to replace the coupler, which you can get directly from them.
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  • Diagnosing Reese 5th Wheel Rail Adapter For Ram OEM Prep Package That Is Rattling When Driving
    A small amount of rattle or play is normal for adapters like the Reese 5th Wheel Rail Adapter for Ram OEM 5th Wheel Towing Prep Package # RP30154. But you may need to tighten your adjustable anchor points as shown in the demonstration video that I attached (about the 5 minute mark). You may want to use some sort of sealant such as Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube # LT37420 to keep the anchors where you want them.
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  • Does Replacement Foot Pad LC324269 Have Torque Value
    The Replacement Foot Pad for Lippert Hydraulic Ground Control Leveling System # LC324269 needs to be torqued to 132 ft-lb. Lippert also recommends using Loctite Threadlocker 262 # LT37420 to prevent the bolt from loosening.
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  • Installing A Replacement Foot Pad For Lippert Hydraulic Ground Control Level System
    The replacement Foot Pad for Lippert Hydraulic Ground Control Leveling System - Qty 1 # LC324269 needs to be torqued to 132 ft-lb and Lippert recommends using some Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube Item # LT37420 to prevent the bolt from loosening. You are correct with the placement of the washer and o-rings.
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  • Is there a Draw-Tite Gooseneck Trailer Hitch for a 2006 Dodge Ram 2500 Diesel Mega Cab
    I spoke with my contact at Draw-Tite and she stated that Gooseneck Trailer Hitch, # 9464-35, will fit the diesel models of the 2006 Dodge Ram 2500 Mega Cab with a 6 foot bed. You may also need some Loctite Threadlocker, # LT37420, for installation if you do not already have some.
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  • Will B&W Underbed Gooseneck Hitch # BWGNRK1000 Fit a 1996 Chevrolet 1500 With 8 Foot Bed
    The B&W Underbed Gooseneck Hitch, part # BWGNRK1000, will fit your 1996 Chevrolet C/K 1500 Truck with 8 foot bed. This hitch has a 30,000-lb gross towing weight capacity and a 7,500-lb tongue weight capacity. It is also recommended to use Loctite Threadlocker 262, part # LT37420, on all of the bolts when installing the B&W gooseneck hitch.
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  • Roadmaster Falcon All-Terrain Tow Bar Will Not Lock Into Place
    I spoke with my Roadmaster representative, and explained the problem you are experiencing. There is not a repair kit available for the problem you describe, but my rep told me that is sounds as if the anvil bolt on the end of the inner arm has come loose. This is a very simple repair. Remove the inner arm from the outer arm, and locate the anvil bolt on the end of the inner arm. Remove the bolt, and apply some red locktite (part # LT37420) to the threads and reassemble the arm. When this...
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  • Fit of B & W Turnover Ball Gooseneck Hitch # BWGNRK1100 on 1997 Ford F350 w/ 8 Foot Bed
    According to our friends at B & W, their # BWGNRK1100 Turnover Ball Gooseneck Hitch you referenced will indeed fit your 1997 Ford F350 with the 8 foot bed. You shouldn't need to drill into the truck frame to install the frame rails. Using red Locktite thread locker, part # LT37420 is recommended on the installation hardware. To see the installation details, click on the provided link.
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  • Loc-Tite for Tightening U-Bolt Nuts of U-Bolt Kit
    You can use Loc-Tite if you would like when tightening the nuts of your U-bolt kit. It's not required but it won't hurt. The torque specs for 9/16 diameter U-bolts like the # APUBR-9 is 65-95 ft lbs. With that amount of torque on the nuts they would not back off. For Loctite you could use the part # LT37420.
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  • Roadmaster EZ2 Base Plate Installation on a 2013 Ford C-Max
    The Roadmaster EZ2 Base Plate Kit, # 524432-1, bolts to the bumper core and subframe of your 2013 Ford C-Max. I have attached a link to the installation instructions for you to check out. The instructions include photos of the installation steps. Roadmaster also requires red loctite, # LT37420, to be used on all bolts. There may be some fascia trimming required on your C-Max. The receivers for the draw bars will require an opening on both sides of the lower front grille. Check out the...
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    Image 1 for
  • Should Loctite Be Used to Install a Curt Hitch on a 2014 Honda Odyssey
    There's no reason you couldn't use Loctite like part # LT37420 when installing the Curt hitch part # C13068 but as long as you torque the install hardware down to the proper torque figures in the instructions you wouldn't have any problems with the bolts loosening. I attached an install video for this hitch for you to check out as well.
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    If your bolts are getting loose, I recommend using Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube # LT37420 and torquing your bolts to the manufacturer specs. The Loctite will keep the bolts from coming loose and prevent further wear because of loose hardware. If you need to replace the unit you currently have due to the oblong holes, I recommend the Fulton Fold-Away Coupler Hinge Kit for 3" x 3" Tongue - Bolt On - Up to 5,000 lbs # FHDPB330301. Unfortunately...
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  • Securing Steel Coupler To Aluminum Car Hauler Trailer Tongue To Prevent Theft
    Thanks for the photo of your trailer coupler. That really helps explain what you are asking about. I spoke with a couple of other Experts and we may have a couple options you can consider. One way to go is to use Loctite Threadlocker 262, part # LT37420 on the coupler bolt threads. This is put on the threads when bolting the coupler to the trailer tongue and becomes impossible to remove with hand tools without heating it up to 500F degrees to free the parts for disassembling. That would...
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  • Is Threadlocker Required To Install A Trailer Hitch Receiver?
    To install the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13119 or any hitch, there is not a requirement in the instructions to use any threadlocker, but I personally think it is wise. The instructions say to periodically check to ensure fasteners are tight, but I don't believe most people actually do that and Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube # LT37420 would be a good idea.
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  • Base Plates That fit a Two-Door 1998 Chevy Tracker
    The correct base plates for your two-door 1998 Chevrolet Tracker are the Roadmaster XL Base Plate Kit - Removable Arms # 118-15. We do not have a video showing an installation of these plates, but the kit comes with everything you'll need except for Loctite Red # LT37420, which you'll use on all bolts when mounting the bracket. I've added a link to the instructions for you to take a look at; it's not a video, but it should provide you with a good idea of what the installation process...
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  • Butyl Tape To Seal Trailer Roof Panel Joint
    The LaSalle Bristol XTRM Butyl Tape part # 344270341411-1 can definitely be used to seal the joint on the roof your cargo trailer. Butyl tape is used to seal off many roof accessories like trailer vents and fans. Since the butyl tape is pre-formed it is easier to install and get a water tight precise seal compared to some of the liquid sealants that can be more difficult to maneuver. The adhesive on the tape forms a bond with the surface that improves over time. This particular butyl tape...
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  • Is Thread Locker Necessary on Bolts When Installing a Trailer Hitch
    The Curt Class III trailer hitch for your Pathfinder, part # C13126 would utilize nuts that are welded up into the frame member. The conical toothed washers used in the installation do a good job of maintaining the torque applied to the bolt during installation, so threadlocker like # LT37420 isn't necessary although using it won't cause any harm. If you decide to use threadlocker, and you decide at some point in the future to remove the hitch you'll want to remember to apply heat to...
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  • Brake Assembly Stud Rotates when Trying to Tighten the Nut
    You might be able to drive out the one stud that is rotating, coat it with red Loctite such as # LT37420, let it cure, and then give it another try. Or you could tack weld it to the brake assembly to prevent it from turning. The threads must be a different pitch or size since the old ones are not fitting the new shocks. What I would do is take one of the new shocks or mounts or bolts with you to a hardware store and try out some nuts to find one that fits (unless Dexter can provide the...
    view full answer...

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