9 best thread locking adhesives

Thread locking adhesives, also known as threadlockers, are a type of adhesive used to lock threads in place and prevent them from loosening due to vibration, shock, or other external forces. These adhesives are commonly used in various applications, including automotive, machinery, and industrial equipment.

Thread locking adhesives come in different strengths or grades, such as low, medium, high, and permanent strength, to suit different needs.They are typically available in liquid or gel forms and can be applied directly to the threads of screws, bolts, or other fasteners before assembly.

The adhesive cures within the threads and creates a strong bond, adding resistance to vibrational or rotational loosening. This is particularly crucial in automotive applications where bolts and screws are exposed to constant movement and vibration.

In the automotive industry, thread locking adhesives play a vital role in securing critical components such as engine mounts, suspension systems, and brake calipers. They help enhance the reliability and safety of vehicles by ensuring that fasteners stay in place even under challenging conditions.

It's important to carefully follow the manufacturer's instructions for the specific thread locking adhesive being used, including proper application and curing times, to ensure optimal performance and durability.

Below you can find our editor's choice of the best thread locking adhesives on the market
  

Loctite 209728 Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single Thread Locking Adhesive, 0.2 Fl. Oz (Pack of 1), 2 & Threadlocker Red 271,0.20 fl. oz(209741)

Based on 3 reviews Check latest price

Product description

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single

Loctite Threadlocker Blue 242 locks threaded metal fasteners against loosening from machine vibration. It prevents leaks and rusting of metal threads for 1/4- to 3/4-Inch (6 mm to 20 mm) nuts and bolts. Metal parts can be removed with hand tools for easy disassembly if necessary. Sets in 20 minutes and cures in 24 hours. Especially useful for small motors, mowers and many types of power equipment.

Threadlocker Blue 242 is designed to lock and seal threaded fasteners that require normal disassembly with standard hand tools. Its advanced formula cures when it's confined in the absence of air between close-fitting metal surfaces to prevent the loosening of metal fasteners caused by vibrations. Plus, it protects threads from rust and corrosion to keep them working properly for longer. 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.



Loctite Threadlocker Red 271,0.20 fl. oz(209741)

Henkel 01-27100 Loctite 6-ml Threadlocker 271

Loctite Threadlocker Red 271,0.20 fl. oz(209741)

  • Product 1: Advanced formula prevents loosening of metal fasteners caused by vibrations
  • Product 1: Protective design protects threads from rusting and corroding
  • Product 1: Medium-strength allows nuts and bolts to be removed with hand tools
  • Product 1: Locks and seals threaded fasteners that require disassembly
  • Product 2: Heavy-duty adhesive permanently locks large metal fasteners
  • Product 2: Designed for larger metal fasteners 3/8-inch to 1-inch
  • Product 2: Use on power equipment where secured fasteners are mandatory
  • Product 2: Sets in 20 minutes; cures in 24-hours

User questions & answers

Question: Are the edges of the pan sharp? I have a pan by this maker that cuts my fingers wondering if they fixed this problem
Answer: From what my hubby says its quite sturdy, and he does love how he can easily adjust the platform and raise or lower it to his perfect fit in almost any chair.
Question: I need a replacement broiler pan that goes under the gas stove. It measures exactly 17" from side to side. Will this fit
Answer: /Duration -:-Loaded: 0%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -0:00 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions off, selectedAudio TrackFullscreenThis is a modal window. .noScriptDisplayLongText { display : none; } .noScriptNotDisplayExpander { display : none; } .noScriptDisplayLongText { display : block; } Dear customer: Nice to hear from you. Our product is suitable for g923 Logitech. … see more Dear customer: Nice to hear from you. Our product is suitable for g923 Logitech. In addition, our products can be applied to most brands and models of pedals, steering wheels and transmissions in the market. Because our products have a certain number of pre drilled holes. You can install it according to your own needs. If there is no suitable pre drilling in other places, you can also carry out simple DIY drilling for installation. Please rest assured that this is a very simple operation. Because many of our customers will do DIY drilling to install the handbrake. Of course, if you have other questions, you can contact us. We will serve you at the first time. The following is a video of the product. If you are interested, you can view it. Happy shopping! Phoebe see less Dear customer: Nice to hear from you. Our product is suitable for g923 Logitech. In addition, our products can be applied to most brands and models of pedals, steering wheels and transmissions in the market. Because our products have a certain number of pre drilled holes. You can install it according to your own needs. If there is no suitable pre drilling in other places, you can also carry out simple DIY drilling for installation. Please rest assured that this is a very simple operation. Because many of our customers will do DIY drilling to install the handbrake. Of course, if you have other questions, you can contact us. We will serve you at the first time. The following is a video of the product. If you are interested, you can view it. Happy shopping! Phoebe
Question: Is this a good roaster to steam/roast a ham or turkey
Answer: Dear customer: Glad to hear from you. Our product is suitable for Xbox one Sterling wheel. In addition, in fact, our products are suitable for most brands and models of pedals, steering wheels and transmissions on the market. Only individual models may require simple DIY drilling. Please rest assured that this is a very simple operation. Because many of our customers will do DIY drilling and install handbrake. Of course, if you have any other questions, you can contact us. We will serve you as soon as possible. The following is a video of the product, which you can view if you are interested. https://www.youtube.com/watch?v=sPLP99P_ RC4 Happy shopping! Phoebe
Question: I need a pan that can both be used in the oven for baking and can then be moved straight to the stove top (for reducing gravies) will this hold up
Answer: Yes, Dear customer. The product can be adjusted up to 31.5 inches (80cm) and up to 27.2 inches (69cm). The folded size is 34 inches (length) * 8.4 inches (height) If you are interested in the product, check out the installation video link below. https://www.youtube.com/watch?v=sPLP99P_ RC4 Of course, if you have any questions, you are welcome to ask again. I will help you in the first place. Wish you a happy life! Phoebe

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single

Loctite

Based on 17 reviews Check latest price

Product description

Threadlocker Blue 242 is designed to lock and seal threaded fasteners that require normal disassembly with standard hand tools. Its advanced formula cures when it's confined in the absence of air between close-fitting metal surfaces to prevent the loosening of metal fasteners caused by vibrations. Plus, it protects threads from rust and corrosion to keep them working properly for longer. 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.

From the Manufacturer

Loctite Threadlocker Blue 242 locks threaded metal fasteners against loosening from machine vibration. It prevents leaks and rusting of metal threads for 1/4- to 3/4-Inch (6 mm to 20 mm) nuts and bolts. Metal parts can be removed with hand tools for easy disassembly if necessary. Sets in 20 minutes and cures in 24 hours. Especially useful for small motors, mowers and many types of power equipment.

  • Advanced formula prevents loosening of metal fasteners caused by vibrations
  • Protective design protects threads from rusting and corroding
  • Medium-strength allows nuts and bolts to be removed with hand tools
  • Locks and seals threaded fasteners that require disassembly

User questions & answers

Question: I'm joinng 2 20' pieces of pipe togther for a weather station pole (outdoors, rain, heat). Which loctite is best
Answer: Blue is for bigger gaps like pipe threads, its thicker. Red is super high strength. I would use regular pipe dope, paste. Case you ever take it apart. If it is never coming aoart, don't use anything it'll rust and be solid.
Question: how do I open the sealed tube? do I just poke a hole at the top
Answer: I think it's best to use a thumbtack, safety pin, etc. to poke a hole into the flat tip. This will give you "droplet-sized control" in application.
Question: Do I apply this to my doorknob set screw before screwing it in or after? (ie, a drop on top
Answer: I have only used it on the screws that hold the wood grips onto a hand gun. Those would always work their way out after just 50 rounds, but now I never have a problem. Plus since I didn't use a ton of the glue, I can always get the grips off again if I should want to swap them out. Other than that, I have never had much need for loctite. You'll find that a lot of shooters use this stuff on all sorts of shooting apparatus!
Question: Is there a solvent or dremel attachement that will remove this stuff from bolt threads
Answer: You don't need solvent or dremel. It will keep any screw or bolt from loosening, but you can get the bolt/screw out with a screwdriver and just brush off the Loctite. Very good stuff.

Product features

Loctite Threadlocker Blue 242

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.

LOCK & SEAL FASTENERS:

Prevents loosening of metal fasteners caused by vibration on small motors, mowers, and power equipment

EASY & QUICK:

Sets in 10 minutes and fully cures in 24 hours

PREVENTS RUST & CORROSION:

Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers

FOR 6-19mm FASTENERS:

Medium-strength formula for use on threads for 6mm to 19mm (1/4-inch to ¾-inch) nuts and bolts

STEP 1:

Clean and dry metal parts before assembly.

STEP 2:

Shake well.

STEP 3:

Apply to threaded material and assemble parts.

STEP 4:

Sets in 10 minutes, cures in 24 hours.

Loctite 576507 Stick Thread Treatment Assortment Kit

Loctite

Based on 45 reviews Check latest price

Product description

Loctite Stick Assortment Pack. One of the most significant innovations in the 50-year history of Henkel Corporation - SOLID formula Loctite Thread Treatment Sticks. Now conveniently packaged in a kit designed to give you five products in one part number. Upside down, right side up, or any angle in between, these Sticks deliver.

  • VERSATILE. Applied to a part even if assembly is to take place at a later time, making the stick ideal for volume assembly
  • RESULTS. Well-suited for difficult repairs, as in overhead applications
  • PACKAGING. Wax-like stick is conveniently packaged in a self-feeding stick applicator
  • EASY TO USE. Removable with hand tools

User questions & answers

Question: Do these expire
Answer: Yes platform doesn't matter.

Permatex 24200 Medium Strength Threadlocker Blue, 6 ml

Permatex

Based on 4 reviews Check latest price

Product description

Permatex Medium Strength Threadlocker Blue Formula is an all-purpose threadlocker ideal for all nut and bolt applications 6mm to 20mm. Eliminating the need for stocking expensive lock nuts and lock washers, this threadlocker locks and seals while preventing parts loosening due to vibration. It also protects threads from corrosion and is removable with hand tools for easy disassembly. Applied as a liquid or gel, threadlockers are superior to conventional lock washers, nylon inserts, and other mechanical devices because they secure the entire fastener assembly against loosening from shock and vibration by filling the space between threaded metal parts, curing to form a tough, adhesive bond and seal. They also seal the threads against leakage, preventing rust and corrosion.

  • Locks and seals while preventing parts loosening due to vibration
  • Protects threads from corrosion
  • Ideal for all nut and bolt applications 1/4" to 3/4" (6mm to 20mm)
  • Removable with hand tools for easy disassembly
  • Suggested Applications: valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburetor studs

User questions & answers

Question: Can I use this on the caliper bolts? And is 2.5ml enough for all
Answer: I just received mine last week.
Question: how many bolts can i do with a 6ml bottle
Answer: It has 24 months warranty.
Question: would this work well with a balisong (butterfly knife) screws
Answer: 110 ac
Question: What is the exasperation date
Answer: No and there isn't any refences on the internet . I went to Tacklife looking for for the saw and it doesn't exist. No customer service to call, they don't answer the phone and the email address on the service card has no address. The shipping container it came in was all busted up and taped together lying next to my door. No instructional information in the container for assemble of safe operation. Contacted eBay for help and they had the same issues but we finally found a company under the title of beauty that is the seller, figure that one out. I would be very wary of purchasing any equipment with TACKLIFE due to no customer services

Product features

Bolt Size

Ideal for all nut and bolt applications ¼” to ¾” (6mm to 20mm).

Removal

Permatex Medium Strength Threadlocker prevents parts loosening due to vibration and is formulated to be removable with hand tools for easy disassembly.

Anaerobic

Threadlockers are anaerobic products, meaning they only cure in the absence of air and the presence of active metal.

Vibra-TITE - 14050 140 Permanent High Strength Anaerobic Threadlocker, 50 ml Bottle, Red

Vibra-TITE

Based on 144 reviews Check latest price

Product description

Vibra-TITE 140 High Strength Threadlocker is a red general purpose adhesive for permanent threaded assemblies. 140 locks fasteners up to 1" in diameter sealing against leakage and corrosion. It resists attack from most fuels, lubricants and most industrial gases. Eliminates double nutting and or welding of critical assemblies. The product’s viscosity can be used on fine to medium threaded parts that will not require periodic disassembly. Ensure parts are clean, dry and free from oil and grease before use. Product is normally hand applied from the bottle onto threaded parts. Fixture Speed with Primer is <5 seconds. Fixture Speed without Primer is 30 minutes at 77 degree F. Shelf Life is 12 months at 68 degree F. 24 hours at 68 degree F Full Cure Time. 200-300 inches/lbs Typical Breakaway Strength. 250-350 inches/lbs Typical Prevailing Strength. Product should be stored in a cool and dry location at temperatures between -10 degree C to 30 degree C. Optimal storage is 22 +/- 4 degree C. Shelf life is 18 months from date of manufacture when stored at 22 +/- 4 degree C. Heat and hand tools required for disassembly. 0.007 inches Maximum gap fill. 250/275 lbs Torque strength, Break/Prevail. 1.1 Specific gravity. N or T Suggested primer. 50 ml Bottle.

  • Lock and seal threaded fasteners
  • Stop fasteners from loosening from shock and vibration
  • Performs better than lock washers, bevel washers and other forms of mechanical locking devices
  • Alleviates rust-lock
  • Prevent leakage

User questions & answers

Question: Are these bottles full? Mine is about 1/3 full
Answer: There are two pulleys of different diameters on the drive wheel. Change the belt to the smaller wheel for faster blade speed. Changing speed is somewhat tedious for frequent speed changes. This bandsaw is best used for light duty work and kept at the speed you prefer.
Question: My oven door handle on one side keeps coming off just was wondering if I put this on the screw if it would hold where it’s the oven door? Please help
Answer: The handle on the feed table is a ratchet type. If you push the center of the handle up, it will turn freely without the handle part turning with it. You will need to "fish" the screw part of the part the handle fits on into the hole in the cradle part on the frame, push the center of the handle up and this frees the center piece so you can turn it without the handle moving with it. After semi-tightening the handle, you can use it as a ratchet by pulling the handle part down and releasing it when you want to tighten it. Took me a little bit to figure this one out. Charlie G.
Question: What works best for stripped threads
Answer: If you use it that same way the ad pics shows people using it, with the blade guide 4 and 5 inches above the stock, it sure will!!
Question: Is useful for threadlocker for Guns?. or is to much heavy?. Thanks
Answer:

Loctite 1329837 243 Blue Medium Strength Threadlockers, 0.34 oz., 10 mL, 3/4" Thread

Loctite

Based on 281 reviews Check latest price

Product description

Loctite 243 Primerless Threadlocker is an oil-tolerant, removable, medium-strength, blue threadlocker designed for the locking and sealing of threaded fasteners between 1/4" and 3/4". It not only works on active metals, but also on passive substrates such as stainless steel and plated surfaces. It tolerates minor surface contaminations from various oils, such as cutting, lubrication, anti-corrosion and protection fluids.

  • Size: 10 ml
  • Color: Blue
  • Characteristic odor
  • A general-purpose, medium-strength threadlocker with improved oil tolerance
  • Oil-tolerant curing on as-received fasteners without cleaning

User questions & answers

Question: Where is it made
Answer: There is a rolled edge on the pan. We recommend that after cleaning the product, need to thoroughly dry through the oven as soon as possible to avoid rusting due to accumulated water.
Question: The description says it's a 10ml bottle, but your product shows a 50ml bottle. Can you please confirm which is accurate
Answer: we recommend hand wash. Washing dishwasher is also possible, but there may be scratches or breakage of non-stick coating caused by friction between the moulds.
Question: Is the 243 good for the bolt clutch compressor? I tight the Allen bolt that holt the clutch of the compressor and just a week fall off again
Answer: sorry, I don't know, I will be using it for the first time for Christmas turkey. It is all Stainless steel! it should be able to handle any temperature your oven can be set too!
Question: Will it work on plastic
Answer: was totally flat when I got it - but I used it on my grill ( slow roast ) and it became slightly domed - as I don't use it on the stove top it's not an issue for me - I would opt for a heavier base model if you need have the flat bottom - otherwise I love it

Loctite 2087072 567 Thread Sealant Brush Top Can, 350 mL, White

Loctite

Based on 6 reviews Check latest price

Product description

Threadlocking adhesive - medium/high strength. Ideal for locking preassembled fasteners. Loctite 290 is a liquid medium/high-strength thread locker designed for the locking and sealing of threaded fasteners. Because of its low viscosity and capillary action, The product wicks between engaged threads and eliminates the need for disassembly prior to application. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. The product can also fill porosities in welds, castings and powdered Metal parts.

  • Provides an Instant low pressure seal
  • Doesn’t creep, shrink or block systems
  • Single component - clean and easy to apply
  • Thixotropic and high/very high viscosity
  • Ul approved

569 Thread Sealant, 50 mL

Loctite

Based on 5 reviews Check latest price

Product description

LOCTITE 569 Hydraulic Sealant Thread Sealant is a high strength, low viscosity thread sealant designed for the locking and sealing of plastic and metal pipes and fittings, including pneumatic and hydraulic fittings. It prevents loosening and leakage from shock and vibration.

  • High Strength, Low Viscosity thread sealant
  • Package Dimensions: 18.415 H x 5.207 L x 10.541 W (centimetres)
  • Package Weight: 0.091 kilograms
  • Country of Origin : United States

Loctite 88448 277 Threadlockers, High Strength, 50 mL, 1 1/2 in Thread, Red

Loctite

Based on 36 reviews Check latest price

Product description

Loctite 277 Large Bolt High Strength Red Threadlocker locks fasteners up to 1 1/2". Protects threads from rust and corrosion. Removable with heat and hand tools.

  • Product Type :Adhesives And Sealants
  • Package Dimensions :2.692 Cm L X5.588 Cm W X15.798 Cm H
  • Country Of Origin :United States
  • Package Weight :2.1Lbs

User questions & answers

Question: what is difference between locktite 277 and
Answer: It’s a metal pan with a non stick coating. I've used it four times now in my roasting pan with absolutely no issues.

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