Trailer safety chains are the back-up connection between a trailer and the towing vehicle. If the coupling comes loose, the chains keep the trailer attached. They are fitted to box trailers, boat trailers, caravans, plant trailers and farm equipment.
Linkworld supplies fully welded safety chain in hot-dip galvanised carbon steel and in stainless steel, in cut lengths or as finished chains with end fittings. Chain grade, size, length and marking are made to the standard or specification you give us, and chains can be load-tested before shipment. We pack in bulk cartons or in your own branded packs.
Safety Chain Specifications
| Specification | Configuration |
|---|---|
| Product | Welded trailer safety chain |
| Material | Carbon steel; stainless steel 304 or 316 |
| Finish | Hot-dip galvanised or self colour; stainless steel |
| Common sizes | 8, 10 and 13 mm for Australian trailer chain |
| Chain grades | To the specified standard, for example AS 4177.4 trailer chain classes or US Grade 30, 43 and 70 |
| End fittings | S hooks, shackles and grab hooks |
| Testing | Load testing on request |
| Supply | Cut lengths or finished chain assemblies |
| Packing | Bulk cartons, own-brand boxes, buckets and small packs |
Other sizes and finishes can be made to drawing or sample.
Where Safety Chains Are Used
- Box and utility trailers light trailers towed by cars and utes
- Boat trailers where galvanised or stainless chain resists salt water
- Caravans and campers as part of the towing connection
- Plant and farm trailers for machinery and implement towing
- Marine and industrial uses general securing where a welded chain is specified
Choosing a Trailer Safety Chain
Start with the market and the trailer. In Australia, trailers up to 3.5 tonnes ATM use safety chain to AS 4177.4, which sets chain classes and permanent marking. In New Zealand the requirement depends on the trailer weight and braking. In North America, chain is usually ordered by grade, such as Grade 30, 43 or 70.
Then choose the finish: hot-dip galvanised for general use, stainless steel for boat trailers and coastal areas. Give the chain size, cut length and end fittings, and tell us if load testing is required. Chain selection for road use should follow the local vehicle rules.
Common Purchasing Mistakes
Ordering by chain diameter only. An 8 mm or 10 mm chain is not automatically right for every trailer. State the standard and class or grade.
Mixing trailer chain with general chain. General welded chain and trailer safety chain can look the same. State the intended use and the marking required.
Leaving the finish open. Self colour, galvanised and stainless chain are different items and should have separate codes.
Forgetting the end fittings. Say whether you need S hooks, shackles or grab hooks fitted, and the finished length.
What to Send with Your Enquiry
| Item | What to tell us |
|---|---|
| Specification | Standard, class or grade, chain size and marking |
| Material and finish | Galvanised carbon steel, self colour or stainless steel |
| Length and fittings | Cut length and end fittings |
| Testing | Whether load testing is required |
| Quantity | Quantity for each size and length |
| Packing | Bulk carton, own-brand box, bucket or small pack |
| Destination | Destination port |
Packing and Supply for Distributors
We pack safety chains in bulk cartons for trade distribution, or in your own branded boxes, buckets and small packs for retail. Each size can carry its own label. For customers who plan several deliveries through the year, we offer free warehouse storage and staged shipments.
Work With Linkworld
Linkworld has more than 20 years of fastener export experience and runs its own cold heading workshop. Our own QC team checks chain size, welds, finish and fittings in our inspection room before every shipment. We make chain and fittings to the standard, drawing or sample you give us, so special grades, lengths and markings are welcome.
Frequently Asked Questions
What are trailer safety chains used for?
They are a back-up connection between the trailer and the towing vehicle in case the coupling comes loose.
Can you supply welded load-rated safety chain?
Yes. We make welded chain to the grade or trailer chain class you specify and can load-test it before shipment.
Can you supply hot-dip galvanised safety chain?
Yes. Hot-dip galvanised carbon steel chain is our standard, and stainless steel 304 or 316 is available for boat trailers and coastal use.
What sizes are Australian trailer safety chains?
8, 10 and 13 mm are the common sizes for Australian trailer chain. The right size depends on the trailer class under AS 4177.4.
Do you supply Grade 30, Grade 43 and Grade 70 chain?
Yes. Send the grade, size, finish and length, and we make the chain to that grade.
Looking for trailer safety chains to your own specification?
Send the standard or grade, sizes, lengths, fittings and packing you need through the enquiry form below, and our team will reply with the options that fit your range.
Send an Enquiry
Send a drawing, sample or clear reference photo. Add the quantity and application if available, and we can start from the information you already have.