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 Threadlocker Blue 242 locks and seals threaded fasteners and prevent loosening from vibration, ideal for 6-19mm fasteners, great for small motors, mowers, equipment, nuts, bolts, screws, 6 ml

Product ID: 221695178

Details

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

🔒Locks & seals fasteners

⏱️Sets in 10 minutes

🛠️Removable with hand tools

E£ 636

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Description

🔧 Lock it down, loosen it up — the pro’s choice for fastener peace of mind!

QUICK SET FORMULA - Achieves initial set in just 10 minutes, fully curing in 24 hours for fast turnaround
VERSATILE APPLICATION - Ideal for small motors, mowers, and power equipment—no need for extra lock nuts
RUST CORROSION SHIELD - Protects metal threads from leaks, rust, and corrosion for lasting durability
VIBRATION PROOF SECURITY - Locks and seals 6-19mm fasteners to prevent loosening under stress
SERVICE FRIENDLY REMOVABILITY - Medium-strength bond that’s strong yet removable with standard hand tools

Loctite Threadlocker Blue 242 is a medium-strength, fast-curing thread sealant designed to lock and seal 6-19mm metal fasteners. It prevents loosening from vibration, protects against rust and corrosion, and is removable with hand tools, making it perfect for small motors, mowers, and power equipment maintenance.

Specifications

ASIN	B000I1RSNS
Best Sellers Rank	#657 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #27 in Universal Adhesives
Brand	Loctite
Brand Name	Loctite
Colour	Blue 242
Compatible Material	Metal
Container Type	Tube
Country of Publication	India
Customer Reviews	4.5 out of 5 stars 41,333 Reviews
Full Cure Time	24 Hours
Global Trade Identification Number	00079340242005
Importer Contact Information	HENKEL ADHESIVES TECHNOLOGIES INDIA PRIVATE LIMITED B Wing, Tower 1, 401, 4th Floor, L and T Seawoods, Grand Central, Navi Mumbai, Mumbai Suburban, Maharashtra, 400706
Included Components	Loctite 242 Threadlocker- 5.69g
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single
Item Weight	5 Grams
Manufacturer	Henkel Adhesive Technologies, Henkel Adhesives Technologies India Pvt Lid. D3/D4 Industrial Estate, Maharstra 412303
Manufacturer Contact Information	Henkel Adhesives Technologies India Pvt Lid. D3/D4 Industrial Estate, Maharstra 412303
Manufacturer Part Number	209728
Material	Thread Sealant
Material Type	Thread Sealant
Model	Henkel / osi -tanch-it-
Number of Pieces	1
Other Special Features of the Product	removable
Packer Contact Information	HENKEL ADHESIVES TECHNOLOGIES INDIA PRIVATE LIMITED B Wing, Tower 1, 401, 4th Floor, L and T Seawoods, Grand Central, Navi Mumbai, Mumbai Suburban, Maharashtra, 400706
Special Feature	removable
Specific Uses For Product	Fasteners, Small Motors, Mowers, Power Equipment
Tensile Strength	110 Pounds Per Inch
UPC	079340242005
Unit Count	6.0 Milliliters
Viscosity Level	High
Volume	6 Millilitres
Water Resistance Level	Waterproof

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E£ 636

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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