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Loctite Blue 242 Threadlocker 6-Milliliter Tube (209728)

4.7 out of 5 stars 552 customer reviews
| 37 answered questions

Price: $5.37 & FREE Shipping on orders over $49. Details
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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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$5.37 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Loctite Blue 242  Threadlocker 6-Milliliter Tube (209728)
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  • Fixxxer Front Sight Installation Hex Tool For Glock 3/16 Hex Nut Driver Tool
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  • Handgun Sight Tool Universal for Front or Rear Dovetail Sights , Glock, 1911 or Other Handguns with Parallel Sided Slides.
Total price: $52.31
Buy the selected items together

Product Description

Size Name: Single

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

Technical Details

Part Number 209728
Item Weight 0.2 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
Material tube
Item Package Quantity 1

Additional Information

ASIN B000I1RSNS
Customer Reviews
4.7 out of 5 stars 552 customer reviews

4.7 out of 5 stars
Best Sellers Rank #83 in Home Improvements (See top 100)
#1 in Industrial & Scientific > Tapes, Adhesives & Sealants > Thread Locking Adhesives
#1 in Home Improvement > Hardware > Adhesives & Sealers > Epoxies > Tile Epoxy Adhesives
Shipping Weight 0.2 ounces (View shipping rates and policies)
Date First Available January 16, 2007

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: Single Verified 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
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Size: Single Verified Purchase
Purchased this for several uses. One for a screw-type pin on a 1911 sight that always wiggled loose after 100-ish rounds. Haven't had an issue since. Also have used it on other projects around the house and has worked every time. Please note that the blue is the "non-permanent" type and red is the "permanent" one. Make sure you choose the correct type for your application. Sometimes the blue does take quite a bit of wrestling to get it to shear though. Also, the Loctite is very runny, so I would highly suggest laying down some newspaper or pouring in a little cup or plastic ramekin and use a q-tip or toothpick to get on threads.
2 Comments 54 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Single
▼ The instructions say the products "sets in 10 minutes," but I had a lot of trouble with that part. The first few times I used this product, the solution never hardened--it stayed moist for a very long time. I assumed I was doing something wrong, but it wasn't totally obvious.

▲ The trick is to SHAKE VERY WELL BEFORE USING. I had only shaken the product somewhat--obviously not well enough.

▲ To be fair, the instructions do indeed say, "Shake well before use." However, this appears to be a very critical step, so I think it should be emphasized on the packaging.

♫ A Review by Chris Lawson
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Size: Single
When it comes to accessories that bolt on to weapons, one should always apply loctite to the screw attachments. I've used loctite blue over the years on multiple rifles, mg's etc. and none have ever had any issues despite heavy firing schedules. I would not hesitate to buy again.
6 Comments 43 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Single Verified Purchase
Have a screw that from repeated use won't stay put? Then this is what you need. Just remove the screw, place a drop of this stuff on the thread, then replace screw. Screw will stay in place from then on! Just a simple torque with a screw driver and the stuff breaks up for easy removal. A must for the weekend DIY!
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Size: Single
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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Size: Single Verified Purchase
The front door knob pulled off half a dozen times and was replaced twice. Thought this might be worth a try. It's been around ten weeks since the repair and my small frustrations are fading memories.
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Size: Single Verified Purchase
Received a day early so was pleasantly surprised to find it on my doorstep. The knife is for beginners, and pretty decent quality for the price. The handles are finely cut and after a while your hand may get sore from training with it.
Pros:
Decent quality
Flips well
Easy to use
Locking bolt has spring
Locks closed or open

Cons:
Cheap bronze bushings
Pretty wobbly
Not as firm as i would like
Not balanced

Overall, I would recommend this trainer because of the price and the decent quality.
2 Comments 33 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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