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The Best Loctite Threadlocker Blue of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Loctite Threadlocker Blue of 2023. Check our ranking below.

2,551 Reviews Scanned

Rank No. #1
Loctite Threadlocker Blue 242 - Removable Thread Lock Glue for Nuts, Bolts, & Fasteners, Medium Strength Screw Glue to Prevent Loosening & Corrosion - 6 ml, 1 Pack
  • Lock and Seal Fasteners: Prevents loosening of metal fasteners caused by vibration on small motors, mowers, and power equipment
  • Prevents Rust and Corrosion: Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers
  • Removable: Can be removed with hand tools
  • Easy and Quick: Sets in 10 minutes and fully cures in 24 hours
  • For 6-19mm Fasteners: Medium-strength formula for use on threads for 6mm to 19mm nuts and bolts
SaleRank No. #2
Loctite Threadlocker 242, 50mL Bottle, Blue
  • Loctite Threadlocker 242, 50mL Bottle, Blue
SaleRank No. #3
LOCTITE 248 Blue Threadlocker Glue Stick: All-Purpose, Medium-Strength, Anaerobic, No Drip, General Purpose, Works on all Metals | Blue, 9 Gram Wax Stick (PN: 37643-506166)
  • RELIABLE ADHESION. Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces) & tolerates minor contamination by oils (e.g. motor oils, corrosion protection oils, cutting fluids). Will not loosen under stress.
  • RESISTANT. Won't drip, leak or melt. Even in high temperatures, LOCTITE 248 self-feeding glue sticks keep their integrity making them perfect for difficult overhead applications.
  • REMOVABLE WITH HAND TOOLS. Well suited for automotive and other applications where maintenance or servicing is required such as valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker studs, carburetor studs, caliper brackets, cylinder heads and more.
  • CONVENIENT CURING. Sets in just 10 minutes & is fully cured in 24 hours. Great for volume assembly as it can be applied well before assembly.
  • APPLICATIONS. For use on threads for 6mm to 19mm (1/4 in. to 3/4 in.) nuts and bolts.
SaleRank No. #4
LOCTITE 243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 36 ml Red Bottle (PN: 1330906)
  • OEM SPECIFIED. Our LOCTITE automotive aftermarket products are not just OEM-specified, they are also designed by auto manufacturers and lab tested. Wherever engines are being built or repaired, LOCTITE is trusted by professionals.
  • RELIABLE ADHESION. Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces) with improved oil tolerance.
  • REMOVABLE WITH HAND TOOLS. Well suited for automotive and other applications where maintenance or servicing is required.
  • MULTI-PURPOSE APPLICATIONS. Rocker studs, rocker adjustment bolts, bolts on valve and cam covers, oil pans, disc brake calipers, intakes and alternators, and pulley assemblies. Ideal for all nut and bolt applications ¼" to ¾" (6 mm to 20 mm).
  • CONVENIENT CURING. Sets in just 10 minutes & is fully cured in 24 hours.
SaleRank No. #5
Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single, 2 Pack
  • Threadlocker Blue 242 locks threaded metal fasteners against vibration loosening
  • Metal parts are removable with hand tools for easy disassembly
  • Prevents leaks and rusting of threads for 1/4-inch to 3/4-inch (6mm to 20mm) nuts and bolts
  • Sets in 10 minutes; cures in 24 hours
  • Useful for small motors, mowers, and power equipments. Set of 2.
Rank No. #6
LOCTITE 242 Threadlocker for Automotive: High-Temp, Medium-Strength, Anaerobic, All Purpose TYPICAL APPLICATIONS, Works on all Metals| Blue, 36 ml Bottle (PN: 37477 - 492140)
  • OEM SPECIFIED. Our LOCTITE automotive aftermarket products are not just OEM-specified, they are also designed by auto manufacturers and lab tested. Wherever engines are being built or repaired, LOCTITE is trusted by professionals.
  • RELIABLE ADHESION. Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces).
  • REMOVABLE WITH HAND TOOLS. Well suited for automotive and other applications where maintenance or servicing is required.
  • MULTI-PURPOSE APPLICATIONS. Great for valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburetor studs. Ideal for all nut and bolt applications ¼" to ¾" (6 mm to 19 mm). Eliminates the need for stocking expensive lock nuts and lock washers.
  • CONVENIENT CURING. Sets in just 5 minutes & is fully cured in 24 hours.
SaleRank No. #7
Loctite 1329505 Blue 243 Medium Strength Threadlocker, 360 Degree F Maximum Temperature, 250 mL Bottle
  • Size: 250 ml
  • Color: Blue
  • Characteristic odor
  • A general-purpose, medium-strength threadlocker with improved oil tolerance
  • Oil-tolerant curing on as-received fasteners without cleaning
SaleRank No. #12
Loctite 135354 Blue 079340-24221-BO 242 Removable Thread Locker, 3/4" Length x 1/4" Width, 10 mL
  • Model Number: 24221
  • Item Package Length: 3.699999996226"
  • Item Package Width: 0.99999999898"
  • Item Package Height: 0.99999999898"
SaleRank No. #13
Genuine LOCTITE 243 x 50ml Medium Strength Oil Tolerant Threadlocker
  • 50ml Tube , Expiry: 2017
  • Effective on all types of metal threaded fasteners. Prevents loosening on vibrating parts such as pumps, motor mounting bolts, gear boxes or presses. Recommended for use where disassembly with hand tools is required for servicing and where parts are contaminated with oil.
  • Strength : Medium Functional Strength (typical value @ 22 °C): 2 hrs Breakaway Torque M10 bolts: 20 Nm Long-Term Temperature Resistance: +150°C
  • (Please note the bottle size is 140ml, there will be about 35% which is 50ml glue into it. There are some air into the bottle to keep glue stable.)
Rank No. #15
Genuine Henkel Loctite 243 X 50ml Medium Strength Oil Tolerant Threadlocker Blue Operating Temperature – 55°C to +150°C
  • Prevents Loosening on Vibrating Assemblies
  • Works on All Metals, Including Passive Substrates
  • Proven to Tolerate Minor Contamination by Industrial Oils
  • Permits Disassembly with Hand Tools for Servicing
  • Application: 1. Clean all surfaces. 2. Use primer/activator for inactive substrate, large gap filling or low temperature cure. 3. Shake well befor use. 4. Apply sufficient product onto the bolts at the nut engagement area. 5. Assemble and tighten as required. 6. Product cures in absence of air and presence of metal.
SaleRank No. #16
Loctite 24241 Blue 242 Medium Strength Threadlocker, 250 mL Bottle
  • Adhesives & Sealants
  • Country of manufacture: United States
  • Manufacturer: Loctite
Rank No. #19
LOCTITE 242 Threadlocker for Automotive: High-Temp, Medium-Strength, Anaerobic | Red, 6mL Tube (PN: 37418 - 487229)
  • OEM SPECIFIED. Our LOCTITE automotive aftermarket products are not just OEM-specified, they are also designed by auto manufacturers and lab tested. Wherever engines are being built or repaired, LOCTITE is trusted by professionals.
  • RELIABLE ADHESION. Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces).
  • REMOVABLE WITH HAND TOOLS. Well suited for automotive and other applications where maintenance or servicing is required.
  • MULTI-PURPOSE APPLICATIONS. Valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburetor studs. Ideal for all nut and bolt applications ¼" to ¾" (6 mm to 19 mm). Eliminates the need for stocking expensive lock nuts and lock washers.
  • CONVENIENT CURING. Sets in just 5 minutes & is fully cured in 24 hours.

Last update on 2023-07-30 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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  2. Features: What bells and whistles matter for an Loctite Threadlocker Blue?
  3. Specifications: How powerful they are can be measured.
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  5. Customer Ratings: Number ratings grade Loctite Threadlocker Blue objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Loctite Threadlocker Blue.
  7. Product Quality: You don’t always get what you pay for with an Loctite Threadlocker Blue, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Loctite Threadlocker Blue is should be an indication of how long it will work out for you.

We always remember that maintaining Loctite Threadlocker Blue information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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FAQ:

Q: What is the strongest thread locker?

A: Loctite® Red Threadlocker is the highest strength. This product cures fully in 24 hours and is available in both a liquid and as a semisolid anaerobic .

Q: What is blue thread lock?

A: Blue 242 Thread Locker is designed to lock and seal threaded fasteners to prevent loosening from vibration. It prevents leaks and the rusting of threads. It eliminates the need to stock expensive lock nuts and lock washers.

Q: How does thread lock work?

A: Most thread-locking formulas are methacrylate-based and rely on the electrochemical activity of a metal substrate to cause polymerization of the fluid. Thread-locking fluid is thixotropic, which allows it to flow well over time, yet still resist shocks and vibrations.

Q: What is a thread locking screw?

A: Thread-locking fluid or threadlocker is a thin, single-component adhesive, applied to the threads of fasteners such as screws and bolts to prevent loosening, leakage, and corrosion. Most thread-locking formulas are methacrylate-based and rely on the electrochemical activity of a metal substrate to cause polymerization of the fluid.

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