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

1,327 customer reviews

| 90 answered questions

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Size Name: Single

Color: Blue 242

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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 20 minutes; cures in 24 hours
Useful for small motors, mowers, and power equipment

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37 new from $4.96 1 used from $10.99

There is a newer model of this item:

Loctite 37418 242 Blue Medium Strength Threadlocker Tube, 6-milliliter
$8.70
(215)
In Stock.

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Size Name: Single | Color: Blue 242

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From the manufacturer

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Automotive Uses Valve Covers. Water Pumps. Alternators. Oil Pans.	Maintenance Uses Light Machinery. Light Conveyers. Door Hardware. Tow motors.	Household Uses Lawnmowers. Grills. Locksets. Bicycles.


	Blue 242	Red 271
Fastener Size	1/4" - 3/4" (6-20mm)	Up to 1" (up to 25mm)
Torque (in pounds) Break/prevail	110/43	250/275
Cure: Fixture/Full	10 mins/24 hrs	10 mins/24 hrs
Temperature Range	-65F to +300F	-65F to +300F
Use	Apply before assembly	Apply before assembly

Compare with similar items

		Loctite 37418 242 Blue Medium Strength Threadlocker Tube, 6-milliliter	Permatex 24200 Medium Strength Threadlocker Blue, 6 ml	Loctite 37421 271 Red Heavy Duty Threadlocker, 6-milliliter Tube	Loctite 38653 222 Purple Low Strength Thread Locker Tube, 6-milliliter	Permatex 27100 High Strength Threadlocker Red, 6 ml
	Add to Cart	Add to Cart	Add to Cart	Add to Cart	Add to Cart	Add to Cart
Customer Rating	(1327)	(215)	(503)	(248)	(217)	(134)
Price	$5.42	$8.70	$5.59	$8.19	$9.17	$5.59
Shipping	FREE Shipping	FREE Shipping	FREE Shipping	FREE Shipping	FREE Shipping	FREE Shipping
Sold By	Amazon.com	Amazon.com	Amazon.com	Amazon.com	Amazon.com	Amazon.com
Item Dimensions	3.4 x 4.8 x 0.5 in	—	3.81 x 0.75 x 6.5 in	3.8 x 6.5 x 0.75 in	4 x 6 x 1 in	3.81 x 0.63 x 6.5 in
Size	Single	6 Milliliter	Pack of 1	6-Milliliter	6 Milliliter	Pack of 1

Compare with similar items

Product description

Size Name:Single | Color:Blue 242

Product Description

Loctite Threadlocker Blue 242 is designed for the locking and sealing of threaded fasteners which require normal disassembly with standard hand tools. Prevents loosening of metal fasteners caused by vibrations.

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.

Product information

Size Name:Single | Color:Blue 242

Technical Details

Part Number

209728

Item Weight

0.16 ounces

Product Dimensions

4.8 x 3.4 x 0.5 inches

California residents

Click here for Proposition 65 warning

Item model number

209728

Size

Single

Color

Blue 242

Material

Thread Sealant

Item Package Quantity

Batteries Included?

Batteries Required?

Additional Information

ASIN

B000I1RSNS

Customer Reviews

1,327 customer reviews

4.7 out of 5 stars

Best Sellers Rank

#43 in Tools & Home Improvement (See top 100)
#1 in Automotive > Oils & Fluids > Sealers > Thread Lock

Shipping Weight

0.64 ounces (View shipping rates and policies)

Date First Available

January 16, 2007

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Harlan Kanoa Sheppard

I may not be able to hold a relationship together, but thanks to Loctite I can hold my motorcycle together.

November 29, 2016

Size Name: SingleColor: Blue 242Verified Purchase

I've noticed something. Most manly and enjoyable things tend to vibrate and rattle, especially while making noise. My Harley Davidson caused my vision to blur with images of Americana every time I opened the throttle. While lost in one such reverie, I lost a foot peg because the sound of America had loosened screws and bolts all across my bike.

I experienced this problem repeatedly _until_ I was introduced to this fantastic substance. Just a dab of it along the threads provides the necessary grip to discourage screws from loosening. All of your parts will still be there when you arrive at your destination. This works for everything that has screws and experiences vibration. Bicycle fender? Put some of this on the screws and the bike will rust into a hulk or get stolen before you have to worry about those screws coming out. Lawn blowers. Fans. It's quite versatile.

It's important to stress that this is a worthwhile product. Simply put, it's a watery colored glue. My first thought was "Can't I just use something else?". Sure you can, but it won't work as well. If you use anything stronger than this, that screw may never turn again. The necessary forces can just shear off the head of the screw. Less than ideal. Too thick and it won't follow the threads without applying it with a brush. If it doesn't follow the threads, it will come off and surround the screw head. Loctite Blue is in that 'Goldilocks' zone where it's just right.

Comment 102 people found this helpful. Was this review helpful to you?

Yes

tmanners

Works excellent

July 9, 2011

Size Name: SingleColor: Blue 242Verified Purchase

Excellent product, works exactly as discribed. Threads hold well, and take moderate force to remove, compared to no loctite.

Loctites:
Blue = removable
Red = almost permanent
Green = permanent/never remove

Comment 176 people found this helpful. Was this review helpful to you?

Yes

What's That Now?

Blue for Semi-Permanent Installations

September 2, 2015

Size Name: SingleColor: Blue 242Verified Purchase

If you're buying this you likely know what it is, but in case your not sure, this stuff is used to add some extra grip and fastening power on screws and nuts to keep them tight over time. There are different versions, mainly red and blue. Red forms a more permanent bond. This listing is for the blue loctite and is for scenarios where you may want to loosen or remove the screw or nut you are securing from time to time.

The stuff really works. I use it mainly for making sure my gun sights, mounts, scope mounts, etc., are fastened securely and will not come loose from the vibrations and recoil when shooting. It has been doing an excellent job.

Comment 14 people found this helpful. Was this review helpful to you?

Yes

MindcontrolTop Contributor: Cycling

Almost lowered a star for being so good.

October 27, 2016

Size Name: SingleColor: Blue 242Verified Purchase

Plain and simple this product is amazing. This blue version should be removable but I'm having a hard time doing so. I just need to readjust the position of something I glued in place. Anyway that would be my own fault if I cant remove it. I use the product that I glued daily. My product hits the road every day with bumps of the road but I am very confident with Loctite that it'll stay in its place, and it has now for over 2 months. I cant recommend this product enough. Just be sure that what you are gluing is exactly where u want it.

Comment 7 people found this helpful. Was this review helpful to you?

Yes

Jon

A+ Product

April 19, 2016

Size Name: SingleColor: Blue 242Verified Purchase

Perfect. Very easy to use to tighten down screws, especially screws that have to do with moving parts. I've been a knife collector for many years now and usually most of my knives come with all their screws tightened with no problems whatsoever. Recently however, I received a knife where the pivot always comes loose. This product did the trick perfectly. You don't need too much, just a little bit will do. If however you do feel like you have used too much and the entire thing gets stuck or too tight, just heat it up using a hair dryer or something and it should be easy to remove and clean.

Comment 8 people found this helpful. Was this review helpful to you?

Yes

R. J. ProvinceTop Contributor: Photography

Great For RC Car and Trucks

March 9, 2017

Size Name: SingleColor: Blue 242Verified Purchase

I got this to use on my FireFox RC Truck's tire nuts. They kept coming lose. Mainly the back-left tire. I not only would lose the nut, but the pin that holds the tire to the axle. Getting replacement parts was a huge hassle, so I decided to try this product.

This is my first time using this type of product, but I must say - it's very easy to apply. I thought it would be more like a caulk or tooth paste, but it's more like a model glue. Goes on fast and dries in about 5 minutes. After about 10 runs, my tires stayed on and I am so happy.

What's even better - I needed to take off all my rims and without thinking I just put the nuts back on. After about 4 runs, I realized I didn't need to re-apply the thread lock - what was on there was still holding. I'll have to admit, not much pressure or vibration going on for a small 1/10 RC toy, but when a product works and works well - it not only deserves recognition - it's a product that I plan on keeping in my toolbox from now on.

All in all - this stuff works!

Comment 2 people found this helpful. Was this review helpful to you?

Yes

Josh L.

Local 80 approved

June 12, 2016

Size Name: SingleColor: Blue 242Verified Purchase

A must for anyone doing camera rigging on high vibration vehicles

Comment 9 people found this helpful. Was this review helpful to you?

Yes

maryTop Contributor: Pets

Wire rimmed glasses with with frequent screws dropping out? Think about this then!

October 4, 2017

Size Name: SingleColor: Blue 242Verified Purchase

I got this to use on a bed frame I was assembling. I can't give a true rating on that because it's been less then a month. I AM GIVING THIS 5 STARS BECAUSE OF THIS; wire rimmed glasses. The screw holding a lense in place fell out too numerous frequency to count. I thought about this product and said why not try it there. I used a cotton tipped swab to dab a small amount on screw. Carefull not to get product on any part of lense or frame. Well after two weeks that screw has stayed in place. In past it rarely lasted two days in place. I placed some on screw holding other lense in place. I do not know if this is recommended use. But losing, breaking, scratching a lense on an expensive pair of glasses is something I don't want to do.

Comment 2 people found this helpful. Was this review helpful to you?

Yes

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Most recent customer reviews

dbattle20

Five Stars

Needed this, and looking for it for too long and I got it now. A Must have...

Published 13 hours ago

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Published 18 hours ago

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I like it very

Yes, I like it very much

Published 1 day ago

Brandon

This is good stuff to keep around if you work on stuff ...

This is good stuff to keep around if you work on stuff allot. It pretty much never hurts to put blue loctite on something, you can get into trouble with the other ones though.

Published 1 day ago

baytown codger of texas

it does the job as needed

Not the smartest marketing

Loctite should take the lead from their competitor Permatex and color coat the actual bottle it comes in. If it’s blue then why do it in a red bottle?Read more

Published 3 days ago

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