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Loctite 242 Medium Strength Threadlocker, 50 mL Bottle, Blue

4.9 out of 5 stars 26 customer reviews
List Price: $38.71
Price: $11.95 + $4.99 shipping
You Save: $26.76 (69%)
In Stock.
Estimated Delivery Date: April 12 - 15 when you choose Expedited Shipping at checkout.
Ships from and sold by OnlyWayToSave.
23 new from $11.95
Specifications for this item
Brand Name Loctite Corporation
Color Blue
Container Size 50  milliliters
EAN 0013161053723
Import Designation Made in USA
Item Weight 3.52 ounces
Manufacturer Warranty Description Manufacturer
Material Type Anaerobic Sealant
Maximum Fitting Size .75  inches
Number of Items 1
Part Number 079340-24231-BO
Size 50 mL
UNSPSC Code 31200000
UPC 013161053723
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Product Features

  • Ideal for metal nut and bolt applications 1/4" or larger.
  • Multi-purpose, medium strength removable threadlocker.
  • Certified by NSF International to ANSI/NSF Standard 61.
  • Protects threads from rust and corrosion.
  • Removable with hand tools.

Product Details

  • Product Dimensions: 2.7 x 2.7 x 2.7 inches ; 3.5 ounces
  • Shipping Weight: 1.6 ounces (View shipping rates and policies)
  • ASIN: B000132VDA
  • Item model number: 24231
  • Average Customer Review: 4.9 out of 5 stars  See all reviews (26 customer reviews)
  • Amazon Best Sellers Rank: #1,430 in Industrial & Scientific (See Top 100 in Industrial & Scientific)

Frequently Bought Together

  • Loctite 242 Medium Strength Threadlocker, 50 mL Bottle, Blue
  • +
  • Loctite 88442 Red 272 High Temperature/Strength Thread Locker, 50 mL Bottle
  • +
  • Permatex 80078 Anti-Seize Lubricant with Brush Top Bottle, 8 oz.
Total price: $34.89
These items are shipped from and sold by different sellers. Show details
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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsBar None The Best Out There!!
By John W. Gardner III on December 21, 2014
Verified Purchase
I often need threadlocker for different things around the house and those little tubes just don't cut it!! Problem solved.This thread locker keeps things tight but you can take it apart if you need to. Good for screws in computers too...what do you thing that blue on the screw is! Loctite 242!!
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5.0 out of 5 starsSteel Challenge
By Mr. G on December 2, 2015
Verified Purchase
I run a shooting match called the Steel Challenge. My targets are bolted in place but the bolts were always coming off from the impact of bullets slamming into it...especially .45's. Bought this bottle of Loctite and the problem was solved.
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5.0 out of 5 starsThis is Perfect for Pivot Screws on Folding Knives; Recommended Especially for Benchmade Balisongs and AXIS-locks
By EisNinE TOP 1000 REVIEWER on January 22, 2015
I own a Benchmade 52 'Morpho' Balisong and a Benchmade 'Contego' Axis-lock, and coincidentally, they both needed Loctite 'Threadlocker' 242 to keep the pivot screws from loosening. The Balisong needed threadlocker on every screw, which I only realized when one of the tiny zen-pin screws went flying amidst the flipping. If you own knives, this is the stuff you want. If you have no idea what the f*** I'm babbling about, this still might be the stuff you're looking for. It locks screws up solid, but not so solid you can't break the grip with a driver. It won't mess things up irrevocably if you apply it then realize you forgot a washer, for example. But as far as hard use, preventing screws from loosening due to vibration and shock, it's excellent.
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5.0 out of 5 starsNeed the Loctite to keep my Harley from coming apart!
By Harley Mike on September 2, 2014
Verified Purchase
Because my Harley constantly tries to shake itself apart, I need fastener/thread lock on nearly all of my bolts and screws. I just need to remember to keep straight when I want to use the blue Loctite (often) and when I want to use the red (rarely). :-)
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5.0 out of 5 starsGreat Stuff and so Versatile.
By BVAUNSSON on March 7, 2016
Unlike Loctite (Red) 271, which is more of a permanent thread sealer/locker, Loctite Blue 242 is probably the most versatile thread locker in use. Large or small fasteners, this holds tight until loosened with a tool. This allows for repair or replacement of your project parts without destroying the threads or the fastener. A little pricey, depending on the size of container, it's well worth every dime you pay. This is especially true when mounting a scope on a large caliber rifle. The more sever recoil you have the more you need this 242. It holds fast until you loosen it. Just a small dab does the job. Be sure to thoroughly clean the surfaces you are planning to apply Loctite to for best results. No home, garage or tool box should be without it.
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5.0 out of 5 starsThe best stuff on earth for keeping things from backing out
By RatherLiveInKeyWest TOP 100 REVIEWER on October 24, 2012
Let's see...

Magpul vertical grip secured with Loctite Blue - check!

Vortex Strikefire secured within its high mount by Loctite Blue - check!

Quad rail secured in place by Loctite Blue - check!

Streamlight Polytac secured in offset mount by Loctite Blue - check!

... and so much more to come.

Loctite Blue is the perfect product to make sure that there is a no slip connection between bolts and their receivers, and it is outstanding for use with firearms as the stuff withstands the beating and vibration without a second thought. A little goes a long way, so use sparingly.

At the range two days ago, I found two set screws laying on the range floor of my lane and they were identical to the screws used to secure my AR quad rail... not a speck of a sign of Loctite Blue was on them, and I'll bet that somebody out there is not at all happy with the loose condition of their rail right now. Not gonna happen to my rigs.

If you have a need similar to what I described above, get this stuff -- you will not regret it. Highly recommended.
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5.0 out of 5 starsThis is Perfect for Pivot Screws on Folding Knives; Recommended Especially for Benchmade Balisongs and AXIS-locks
By EisNinE TOP 1000 REVIEWER on January 22, 2015
I own a Benchmade 52 'Morpho' Balisong and a Benchmade 'Contego' Axis-lock, and coincidentally, they both needed Loctite 'Threadlocker' 242 to keep the pivot screw from loosening. The Balisong needed threadlocker on every screw, which I only realized when one of the tiny zen-pin screws went flying amidst the flipping. If you own knives, this is the stuff you want. If you have no idea what the f*** I'm babbling about, this still might be the stuff you're looking for. It locks screws up solid, but not so solid you can't break the grip with a driver. It won't mess things up irrevocably if you apply it then realize you forgot a washer, for example. But as far as hard use, preventing screws from loosening due to vibration and shock, it's excellent.
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5.0 out of 5 starsGet the big bottle!
By R. Merrick Scott on April 28, 2013
Verified Purchase
If you have this on hand, you'll use it on everything that needs threadlocker.
If you don't, some of the fasteners won't get done & they could fail.
Get the big bottle!
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