What is Loctite 243 used for?

It is a medium-strength threadlocker used to secure and seal metal fasteners against loosening from shock and vibration.

Can fasteners still be disassembled after application?

Yes, the medium bonding strength allows disassembly using standard hand tools for servicing and maintenance.

Which metals are compatible with this threadlocker?

It works on all metals, including passive substrates such as stainless steel and aluminium.

What is the volume of this bottle?

This bottle contains 10 ml of liquid threadlocker.

Do parts need to be completely degreased before application?

It tolerates light oil and cutting fluid films, but cleaning surfaces beforehand provides the most consistent bond.

LOCTITE 243 medium-strength threadlocker for general use (10 ml bottle) - 1918244

Name: LOCTITE 243 medium-strength threadlocker for general use (10 ml bottle) - 1918244
Brand: LOCTITE
SKU: 11010212
Price: 12.49 EUR
Availability: InStock

Supplier number: LOCTITE 1918244 | EAN 5010266009094

From 1 piece €12.49

From 12 pieces €11.86 - €7.49 saving

From 24 pieces €11.55 - €22.48 saving

From 36 pieces €11.24 - €44.95 saving

12.49 tax incl.

€10.32 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 07/11/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

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Reliable threadlocking with Loctite 243

Practical benefits

Prevents loosening from vibration: You protect metal bolts and nuts against loosening caused by heavy shock loads or continuous mechanical vibrations.
Suitable for all metals: You apply the liquid directly onto active and passive metals like stainless steel or aluminium without requiring primers.
Easy disassembly with handtools: With its medium strength, you easily disassemble threaded parts using standard hand tools during routine servicing.

In a nutshell

The right choise for

With Loctite 243 threadlocker, you reliably secure nuts and bolts against loosening caused by heavy shock and continuous vibration. This blue liquid formula seals threaded connections to protect against fluid leaks and corrosion. You can apply it directly to all metals, including passive surfaces like stainless steel and aluminium, without using a primer. It also tolerates light coatings of cutting fluids and corrosion prevention oils. Thanks to its medium strength, you can easily disassemble assemblies using standard hand tools during routine maintenance and servicing. This convenient 10 ml bottle provides precise application, delivering a durable and secure hold for your mechanical fastening jobs.

Product information FAQ

€12.49

In stock - tax incl.

Key features according to our expert

Net volume: 10 ml
P-statements: P101; P102; P273; P280; P333 + P313; P501
Relative density: 1,08
ADR packing group: Not applicable
ADR class: Not applicable
UN number: Not applicable
Principal hazard property: GHS07 Harmful or irritant
H-statements: H317; H412
Hazard class: GHS07 Harmful or irritant
Physical state: Liquid
Flash point: 100 - 200 °C
Packaging: Bottle
Strength (locking compound): Medium

Product description:

LOCTITE 243 - Threadlocker medium strength - Henkel
LOCTITE 243 is a general purpose threadlocker of medium bond strength.
This threadlocker secures and seal bolts, nuts and studs to prevent loosening due to vibration.
The product works on all metals, including passive substrates such as stainless steel, aluminium and plated surfaces.
It is proven to be tolerant of minor contamination due to industrial oils, e.g. engine oils, corrosion prevention oils and cutting fluids.

Precautionary statements

P101: If medical advice is needed, have product container or label at hand.
P102: Keep out of reach of children.
P273: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
P501: Dispose of contents/container to ... (see safety data sheet).

Hazard statements

H317: May cause an allergic skin reaction.
H412: Harmful to aquatic life with long lasting effects.

All Features

Net volume: 10 ml
P-statements: P101; P102; P273; P280; P333 + P313; P501
Relative density: 1,08
Adr packing group: Not applicable
Adr class: Not applicable
Un number: Not applicable
Principal hazard property: GHS07 Harmful or irritant
H-statements: H317; H412
Hazard class: GHS07 Harmful or irritant
Physical state: Liquid
Flash point: 100 - 200 °C
Packaging: Bottle
Strength (locking compound): Medium

Brand LOCTITE
11010212
EAN 5010266009094
Supplier number LOCTITE 1918244

Frequently asked questions about this product

Answered by specialists

What is Loctite 243 used for?: It is a medium-strength threadlocker used to secure and seal metal fasteners against loosening from shock and vibration.
Can fasteners still be disassembled after application?: Yes, the medium bonding strength allows disassembly using standard hand tools for servicing and maintenance.
Which metals are compatible with this threadlocker?: It works on all metals, including passive substrates such as stainless steel and aluminium.
What is the volume of this bottle?: This bottle contains 10 ml of liquid threadlocker.
Do parts need to be completely degreased before application?: It tolerates light oil and cutting fluid films, but cleaning surfaces beforehand provides the most consistent bond.