Which thread sizes are compatible with Loctite 2400?

This threadlocker is suitable for metal threaded connections up to M36.

How do you disassemble parts secured with this product?

Because it has medium strength, you can disassemble the fasteners using standard hand tools.

What does the H&S designation mean for Loctite 2400?

It features a white safety data sheet with no hazard symbols or risk phrases, enhancing health and safety in the workshop.

On which materials can you apply this threadlocker?

It works on all active metals and passive substrates such as stainless steel, aluminium, and zinc-coated steel.

What is the operating temperature range?

Loctite 2400 resists operating temperatures ranging from -55 °C to +150 °C.

LOCTITE 2400 medium-strength threadlocker (50 ml bottle) - 1947402

Name: LOCTITE 2400 medium-strength threadlocker (50 ml bottle) - 1947402
Brand: LOCTITE
SKU: 02146403
Price: 47.2 EUR
Availability: InStock

Supplier number: LOCTITE 1947402 | EAN 5010266009957

From 1 piece €47.20

From 12 pieces €44.84 - €28.32 saving

From 24 pieces €43.66 - €84.96 saving

From 36 pieces €42.48 - €169.92 saving

47.20 tax incl.

€39.01 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 8 products in stock.

Ordered before 20:00 - delivered as of 05/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

How does it work?

For a purchase value of €99 to €125 excl. VAT, receive FREE LOCTITE 55 thread sealing cord 50 m (IDH 528244) worth €9.99.
For a purchase value of more than €125 excl. VAT, receive FREE LOCTITE SF 7850 hand cleaner 400 ml (IDH 2098250) worth €13.21.
The free item is automatically added to your order. No registration is required.
The promotion is valid from 01.10.2026 to 31.10.2026.
Loctite Buy & Get deals are recognisable by the promotion label on the product page. Click the label to view all available deals.

Reliable locking with Loctite 2400

Practical benefits

Prevents loosening from vibration: You secure metal threaded fasteners reliably against accidental loosening caused by continuous shocks and heavy vibration.
Easy hand tool disassembly: The medium strength formulation allows you to disassemble treated bolts and nuts easily using standard hand tools.
Safe and clean handling: Free from hazard symbols, this formulation offers you a safer work environment during regular maintenance tasks.

In a nutshell

The right choise for

With Loctite 2400 threadlocker, you secure bolts, nuts, and studs reliably against vibration-induced loosening and heavy dynamic shocks. This liquid, medium strength formula is engineered for metal threaded connections up to M36, adhering effectively to all metals as well as passive substrates like stainless steel and aluminium. It seals threads against fluid leaks and corrosion while withstanding operating temperatures from -55 °C to +150 °C. Free from hazard symbols, it ensures a safer and cleaner working environment in your workshop. When routine maintenance is required, you can easily disassemble treated fasteners using standard hand tools.

Product information FAQ

€47.20

In stock - tax incl.

Key features according to our expert

Net volume: 50 ml
Relative density: 1,1
ADR packing group: Not applicable
ADR class: Not applicable
UN number: Not applicable
Physical state: Liquid
Flash point: > 100 °C
Packaging: Bottle
Max. thread size: Up to M36
Strength (locking compound): Medium

Product description:

LOCTITE 2400 - Threadlocker medium strength - Health and Safety
LOCTITE 2400 is a medium threadlocker formulated to secure and seal bolts, nuts and studs to prevent loosening due to vibration.
It works on all metals and passive substrates.
Slight contamination by industrial oils, corrosion prevention oils and cutting fluids is tolerated.
Its key differentiator is the "White" Material Safety Data Sheet.
LOCTITE 2400 carries no hazard symbols, risk or safety phrases and does not contain any declarable carcinogens, mutagens or reproductive toxins.

All Features

Net volume: 50 ml
Relative density: 1,1
Adr packing group: Not applicable
Adr class: Not applicable
Un number: Not applicable
Physical state: Liquid
Flash point: > 100 °C
Packaging: Bottle
Max. thread size: Up to M36
Strength (locking compound): Medium

Brand LOCTITE
02146403
EAN 5010266009957
Supplier number LOCTITE 1947402

Frequently asked questions about this product

Answered by specialists

Which thread sizes are compatible with Loctite 2400?: This threadlocker is suitable for metal threaded connections up to M36.
How do you disassemble parts secured with this product?: Because it has medium strength, you can disassemble the fasteners using standard hand tools.
What does the H&S designation mean for Loctite 2400?: It features a white safety data sheet with no hazard symbols or risk phrases, enhancing health and safety in the workshop.
On which materials can you apply this threadlocker?: It works on all active metals and passive substrates such as stainless steel, aluminium, and zinc-coated steel.
What is the operating temperature range?: Loctite 2400 resists operating temperatures ranging from -55 °C to +150 °C.