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Loctite 2400 Medium Strength Threadlocker

Loctite 2400 Medium Strength Threadlocker


Loctite 2400 Threadlock - 5ml



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  • Description
  • Benefits
  • Technical Info
  • Shipping Explained

Loctite 2400 Medium Strength Threadlocker

Threadlocking Adhesive - medium strength. No labelling. Suitable for all metal threaded assemblies.

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. 

This product carries no hazard symbols, risk or safety phrases and does not contain any declarable carcinogens, mutagens or reproductive toxins.

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  • Designed for the locking and sealing of threaded fasteners
  • No hazard symbols, no risk phrases & no safety phrases
  • Prevents loosening on vibrating assemblies e.g. pumps, gear boxes or presses
  • Permits regular disassembly
  • WRAS Approval (BS 6920): 1104507
  • Improved cure strength on zinc-flake coated steel
  • Improved cure speed on inactive substrates
  • Thread size = M36
  • Works on all metals, including passive substrates (e.g. stainless steel, aluminium, plated surfaces)
  • Proven to be tolerant of minor contamination due to industrial oils e.g. engine oils, corrosion prevention oils and cutting fluids

Technical Information:

Agency Approvals / SpecificationsWRAS (BS-6920): 1104507
Fixture Time8 - 10 min.
Key CharacteristicsThixotropic
SubstratesMetal: Aluminum, Metal: Brass, Metal: Steel, Metal: Steel - Stainless Steel
Thread Size (Maximum)M36
Torque Break on M10 Steel20 N·m


SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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