Loctite 243 Blue Medium Strength Threadlocker – 0.05 ml Capsule

Loctite 243 (often referred to as Loctite “blue”) is a medium-strength, removable threadlocker designed for fasteners that may need to come apart for service or adjustments. It is ideal for small screws, grip screws, sight set screws, and other threaded components that experience vibration but still require periodic removal without the use of heat.
This 0.05 ml capsule is perfect for tool kits, range bags, or individual firearm builds.

⭐ Why Choose Loctite 243 Blue?

✔ Loctite – Locks and Seals Small Fasteners

Loctite 243 prevents screws from backing out due to vibration.
As a result, it works well on small engines, mowers, power tools, and firearms.

✔ Loctite – Protects Against Rust and Corrosion

Its moisture-resistant formula helps stop leaks, rust, and oxidation,
which means you won’t need to rely on expensive locknuts or washers.

✔ Removable Formula

Because Loctite 243 is medium strength, fasteners can be removed later with standard hand tools—
no heat required.

✔ Fast and Easy Application

It sets in 10 minutes and fully cures in 24 hours,
allowing you to get back to work quickly.

✔ Designed for 6–19 mm Fasteners

Perfect for threaded components such as 6 mm to 19 mm screws, nuts, and bolts.
This makes it ideal for firearm maintenance, optics screws, and general equipment use.

📦 Perfect For:

• Grip screws

• Sight set screws

• Optic mounting hardware

• Firearm accessories

• Small motors & power equipment

• Any fastener that must stay secure but still be serviceable