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Threadlocker Blue 242 0.20 fl. oz. Specialty Glue

$7.02
  • Prevents loosening of metal fasteners caused by vibration
  • Removable with heat and hand tools and cures fully in 24 hours
  • Thread locker protects threads from rust, leaks and corrosion
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Product Details

Loctite Threadlocker Blue 242 is designed to lock and seal threaded fasteners and prevent loosening from vibration. Ideal for 6-19mm fasteners, this unique formula is great for small motors, mowers, and power equipment. Loctite Threadlocker Blue 242 protects threads and prevents from leaks, rusting, and corrosion and eliminates the need to stock up on expensive lock nuts and washers. Fast and easy to use, this medium-strength threadlocker sets in just 10 minutes and fully cures in 24 hours. Loctite Threadlocker Blue 242 is particularly suited for applications on less active substrates such as stainless steel and plated surfaces, where disassembly is required for servicing.
  • Medium-strength formula to lock and seal threaded metal fasteners
  • Resists loosening caused by shock and vibration on machinery
  • Moisture-resistant formula protects from leaks, rusting, and corrosion
  • Great for small motors, mowers, and power equipment
  • Can be removed with hand tools
  • Sets in just 10 minutes and fully cures in 24 hours
  • For use on threads for 6mm to 19 mm (1/4 in. to 3/4 in.) nuts and bolts
  • Particularly suited for applications on less active substrates such as stainless steel and plated surfaces where disassembly is required for servicing
  • Eliminates need to stock up on expensive lock nuts and washers






  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

35Questions
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Q:Can I use this on my Tfal cookware handle (screws)?
by|May 28, 2022
1 Answer
Answer This Question

A:  Thank you for the question. Loctite Threadlocker Blue 242 is not tested for this intended use. It might be possible to use the product, but Loctite does not speak to this application or intended use where food safety may be concerned and therefore would have not responsibility for your results in this situation.

by|May 31, 2022
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    Q:Repair air mattress
    by|Jul 25, 2021
    6 Answers
    Answer This Question

    A:  No. No way, this is not a patch & glue. This is not te repair you are looking for.

    by|Jul 26, 2021

    A:  No, it’s made for keeping nuts onto bolts.

    by|Jul 26, 2021

      A:  No. This is not a glue, or the type of adhesive you would need for your application. I am not familiar with the exact product you would need. But I would suggest you try an outdoor supply store that might deal more specifically with air mattresses. They likely will be better able to help you.

      by|Jul 26, 2021

      A:  Thank you for the question bit answer is no. The Threadlocker Blue should not be used in an attempt to repair an air mattress. This is not an adhesive or glue but instead a thread locking, anaerobic, compound for use on threaded metal fasteners.

      by|Jul 26, 2021

        A:  No, this is for threads on screws to keep them from coming loose.

        by|Jul 26, 2021

        A:  No it's for nuts and bolts.

        by|Jul 26, 2021
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        Q:Can you use it on bmx crank bolts
        by|Jul 9, 2021
        5 Answers
        Answer This Question

        A:  I would say a cautious probably.

        by|Jul 13, 2021

        A:  Yes

        by|Jul 10, 2021

        A:  Loctite Threadlocker 242 can be used on BMX crank bolts keeping in mind it may make it more difficult to remove at some point.

        by|Jul 12, 2021

          A:  If you are talking about the pedal that screws into the crank/front sprocket, then yes you can use it. Just be sure to get the right strength. There is one weaker than this one and one much stronger. If you get the stronger one you will have to heat the pedal shaft to over 500 degrees to get it to break loose. If you are talking about crankshaft bolts in an engine then no, I wouldn't use it there. Keep those from getting loose by applying the proper torque.

          by|Jul 10, 2021

          A:  It comes in 3 strengths green, blue, and red (the liquid, not the tube color) I always use blue. It holds vert tight, but can be loosened with tools. The red needs heat and tools. Make sure you go by the strength as stated on the package, not by the color of the tube. They are all red I think.

          by|Jul 10, 2021
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            Q:could this be used on faucet handles?
            by|May 8, 2021
            5 Answers
            Answer This Question

            A:  Yes.

            by|May 18, 2021

            A:  Yes if you put it on the threads.

            by|May 9, 2021

            A:  Thank you for the question, Rachel. The Loctite Threadlocker Blue 242 is designed for the locking and sealing of threaded fasteners which require normal disassembly with standard hand tools. Assuming the threaded parts are clean, dry, not plastic and have a good fit then this product is well suited to help keep them tight. Last, given this is a facet it is possible that removal art some point may be quite difficult assuming the parts have a good fit.

            by|May 10, 2021

              A:  Not knowing the style of faucet or why you think this product would work in this situation. Here goes,,,This product is a thread lock, if you use it on the set screw that holds the faucet handle on, this will prevent that screw from becoming loose. With that said if the threads, screw or faucet handle are worn or damaged this “May” only be a temporary fix at best. Also take note this product may also “loctite” the faucet closed.Once again this is this answer is made without seeing the faucet.

              by|May 9, 2021

              A:  Yes, anything that is threaded. Use only a light coating, don’t saturate or it may be difficult to take apart later. And use the blue, not the red loctite.

              by|Oct 19, 2022
                1 found this answer helpful
                Showing 1-4 of 35
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                Customer Reviews

                4.6 out of 5
                (820)
                • 4.6
                  out of 820 reviews
                • 91%recommend this product
                Filter by:
                Showing 1-10 of 820 reviews
                Never loss a screw or bolt
                I bought some pegs for my motorcycle and on my ride on gravel road I lost one screw and the other one was loss. I bought this Loctite and it works really good. I can still take the screw out if I want but this stuff is really good. Highly recommended
                by
                Response from Henkel CorporationMay 5, 2022
                Thank you for choosing Loctite!
                • Verified Purchase
                • Recommended
                Holds bolts and is removable with hand tools
                I use it on RC planes and helicopters to keep the bolts from vibrating loose.
                by
                  • Recommended
                  My wife had glasses with very small screws and nuts that attached the lens to the frame. The nuts...
                  My wife had glasses with very small screws and nuts that attached the lens to the frame. The nuts were always becoming loose even after tightening. The Loctite Blue is for large size threads but I decided to attempt to use the Loctite in any case. I applied it with a toothpick as the parts were so small. I looked with an eye lope after the product had dried and I could see the threads were covered with the product. The screws have remained tight but since these glasses are my wife's spare pair so I am not sure of the long term repair capabilities.
                  by
                  • Verified Purchase
                  • Recommended
                  1 found this review helpful
                  I know that there are other, less expenaive, alternatives available in the market place. However...
                  I know that there are other, less expenaive, alternatives available in the market place. However, nothing beats the original "Loctite" threadlocker.
                  by
                  • Verified Purchase
                  • Recommended
                  2 found this review helpful
                  Excellent product from Loctite. Always works as expected! Used...
                  Excellent product from Loctite. Always works as expected! Used on threads to lock in drawer knob that kept spinning off.
                  by
                  • Verified Purchase
                  If you own ANY kind of motorcycle , this needs to be in your toolbox !!
                  If you own ANY kind of motorcycle , this needs to be in your toolbox !!
                  by
                  • Verified Purchase
                  • Recommended
                  Loctite thread locker is the industry standard.
                  Loctite thread locker is the industry standard.
                  by
                  • Verified Purchase
                  • Recommended
                  Nope, Its good to use and my mechanical manuals say to use it. With being said I prefer the twist...
                  Nope, Its good to use and my mechanical manuals say to use it. With being said I prefer the twist bottom tube type that Loctite makes. Every one knows that anything bought in bulk is cheaper, This product is expensive expensive expensive did I say its expensive !!!!!
                  by
                  • Verified Purchase
                  Easy to use on threads that you need to stay tightened. I use this same stuff year after year, E...
                  Easy to use on threads that you need to stay tightened. I use this same stuff year after year, Easy to open, store and use.
                  by
                  • Verified Purchase
                  • Recommended
                  For those stubborn screws that don't want to stay put. We have some knobs that can't seem to stop...
                  For those stubborn screws that don't want to stay put. We have some knobs that can't seem to stop loosening every few weeks, mainly on the pantry door. So I bought some of this loctite and problem solved! You just put a little bit on the threads and screw it back in. Takes 24 hours to cure properly, but it's as simple as that. This particular loctite is for 1/4" to 3/4" fasteners. Pros: Quick way to keep screws from getting loose. Cons: Be careful cutting the tip off of the tube because it can get messy.
                  by
                  • Recommended
                  4 found this review helpful
                  Showing 1-10 of 820 reviews

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