Is there a solvent or dremel attachement that will remove this stuff from bolt threads?

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.

Do I apply this to my doorknob set screw before screwing it in or after? (ie, a drop on top?)

Before. You apply this to the screw threads before screwing in. Make sure you only apply a very little bit. More is not better.

how do I open the sealed tube? do I just poke a hole at the top?

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.

can this be used in glasses? The screws that hold the lenses in place?

No, it is designed for larger screws. Use Loctite 222 for small screws.

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Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, 12 Pack

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, 12 Pack

Product ID: 298504927

Details

Brand
Loctite
Item Form
Liquid
Material
Thread Sealant
Special Feature
removable
Specific Uses For Product
Automotive DIY

⏳Full cure in 24h

🔒Locks threads tight

🔧Removable with hand tools

NZ$319

Duties & taxes included

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Description

🔩 Lock it down, loosen it up — the pro’s choice for lasting reliability!

RUST LEAK DEFENSE - Protects threads from rust, corrosion, and leaks—no more unexpected breakdowns.
QUICK SET LONG LASTING - Sets in just 10 minutes with a full cure in 24 hours, so you’re back in action fast.
PRECISION FIT FOR 6 20 MM - Optimized for medium-sized fasteners, perfect for everything from power equipment to DIY builds.
VIBRATION PROOF SECURITY - Locks and seals fasteners to prevent loosening from vibration, ensuring your projects stay intact.
SERVICE FRIENDLY STRENGTH - Medium strength formula allows easy removal with hand tools, ideal for maintenance without damage.

Loctite Heavy Duty Threadlocker Blue 242 is a medium-strength adhesive designed to lock and seal 6-20mm threaded fasteners, preventing loosening from vibration while protecting against rust and leaks. It sets quickly in 10 minutes and fully cures in 24 hours, yet remains removable with hand tools for easy maintenance. Ideal for automotive, construction, and DIY applications, this 12-pack of 0.2 oz tubes offers professional-grade reliability for your projects.

Specifications

ASIN	B01EZTPX8A
Best Sellers Rank	#269,135 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3,372 in Universal Adhesives
Brand Name	Loctite
Colour	Blue
Compatible Material	Metal
Container Type	Tube
Country of Publication	USA
Customer Reviews	4.8 4.8 out of 5 stars (90)
Full Cure Time	24 Hours
Global Trade Identification Number	30079340242006
Included Components	Threadlocker Tubes (12)
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Loctite Blue 242 Threadlocker 6-Milliliter Tubes, Case of 12 (209728-12)
Item Weight	0.1 Pounds
Manufacturer	Loctite
Manufacturer Part Number	Loctite - 209728 - 12pk
Material Type	Thread Sealant
Model	209728-12
Number of Pieces	1
Other Special Features of the Product	removable
Specific Uses For Product	Automotive, Construction, DIY Projects
UPC	707934024200
Unit Count	12.0 Count
Viscosity Level	Medium
Volume	6 Millilitres
Water Resistance Level	Not Water Resistant

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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NZ$319

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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3 weeks ago

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