10mm x 2.5t Galvanised Trailer Safety Chain

Part No: CM546-2 Category:


320 in stock

320 in stock

Frequently Bought Together

Safety Chain Holder (max. 3500kg ATM)

The Couplemate™ CM551-3 is an Australian-made Safety Chain Holder that suits trailers, caravans, and campers up to 3500kg ATM.

✓ AS4177.4 and ADR 62 compliant.
✓ Suits 10mm & 13mm chain hammerlocks.
✓ Made from robust steel to provide strength and security.

Licensed with the Australian Made Campaign. 

Couplemate accepts PayPal, Visa and Mastercard.

10mm x 2.5t Galvanised Trailer Safety Chain

10mm x 2.5t Galvanised Safety Chain – 64cm long for 10mm chain and 64cm long for 13mm chain.

The caravan and trailer safety chain are essential in coupling failure between the vehicle and trailer. Worn tow balls and couplings are a major cause of coupling detachment from the towing vehicle.

made in australiaWe think you should know that this safety chain is made in Australia.

  • The Safety Chain rating is stamped every four links.
  • Two chains per trailer or caravan are mandatory on all trailers over 2.5t.

Is your trailer or caravan chain too short?

The solution

  • cut the trailer safety chain from your chassis rail, leaving only the welded link on your chassis.
  • Install a new piece of rated galvanised 13mm longer chain.
  • Connect the hammerlock to the new chain and the welded link on your chassis rail.

What you cannot do

  • Join multiple shackles until you reach the desired length.
  • Insert un-rated links
  • Use hooks on the trailer safety chain
  • Use bolts to attach the safety chain to the trailer

Galvanised safety chains and shackles are illegal on all trailers over 3.5t.

How many safety chains are required on a trailer?

Why cross the trailer safety chains?

In extreme circumstances resulting from an accident or oversight, couplings can become detached from the tow ball. Cross chains prevent the coupling from falling to the ground and catch it in a chain cradle.

How should trailer safety chains be attached to the tow bar and trailer?

  • Attach chains to the tow bar via a rated dee or bow shackle or other suitable rated connection.
  • Attach the chain to the trailer via a hammerlock to a chain holder or weld one link horizontally to the trailer chassis rail.

It is essential to remember…

There is no chain welding below the chassis rails.

Trailers up to 2.5 tonnes ATM must have at least one safety chain complying with AS 4177.4 – 1994 (Trailer and light trailer towing components – Safety chains up to 3.5 tonnes capacity), or as amended from time to time. This standard allows for steel safety chains by the following:

  • to 1.0 tonne, a chain size of 6.3 mm
  • up to 1.6 tonnes, a chain size of 8 mm
  • up to 2.5 tonnes, a chain size of 10 mm

Purchase spare parts and attachments for Dee Shackles

Additional information

Weight2 kg
Dimensions60 × 4 × 4 cm

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.


    Be the first to review “10mm x 2.5t Galvanised Trailer Safety Chain”

    Your email address will not be published. Required fields are marked *