70mm Tow Ball (1-1/4″ Shank)
$155.00
✓ Made in Australia from high-tensile steel.
✓ Rated to 4500kg maximum ATM.
✓ Suitable for 70mm trailer couplings.
Certified Compliance with ADR 62 (CTA-045125).
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Australian Made Chrome 70mm Tow Ball
In recent years, our team has noticed that more and more Australians use 70mm tow balls.
Traditionally, the most common drawbar coupling was the 50mm type (like the AL-KO electric coupling). However, many new trailers and caravans have a 70mm ball coupling due to the increased need for higher weight ratings.
Standards for towing equipment depend on the intended ATM. In short, an increase in ATM equals an increase in standards.
As a Queensland-based manufacturer, it’s important to us that all Couplemate™ components meet and exceed these quality standards. Given the increase in heavier vehicles and ATMs on Australian roads, this matters more now than ever.
Shank Specifications
- Diameter: 32mm (1-1/4″)
- Length: 72mm
- Thread Length: 50mm
- Threads per Inch: 12
4.5t ATM Towing Compliance
Our 70mm ball is compliant with:
- Australian Standards (4177)
- ADR 62/02 (Mechanical Connections between Vehicles).
Component Type Approval: CTA-045125
Components supplied with a CTA number guarantee that it has been tested to the relevant standards. Moreover, it ensures that a consistently safe product will be supplied (source).
Our team is able to provide a printed copy of the CTA letter with your order upon request. Alternatively, the digital version is available here: CM296 70mm Tow Ball Approval Letter
High Tensile 70mm Tow Ball
The Couplemate™ Core Range ensures strength and safety through solid engineering, and our 70mm ball is no exception.
- Rating: 4500kg maximum ATM
- D-Value: 23.2kN
- Torque Setting: 1109Nm
View product documentation online: Couplemate 70mm Tow Ball Specifications
Made from High Quality Steel
Our internal engineers and production team quality check all manufacturing materials.
The Couplemate™ 70mm tow ball is manufactured from Grade 4140 high tensile steel.
As an engineering steel, 4140 is universally known for its strength and robust composition. Given Australia’s tough towing conditions, 4140 steel provides the necessary mechanical properties to ensure strength and security.
(Excerpt from the BlueScope Catalogue, page 138).
AS 4177 Manufacturer Markings
Couplemate™ manufactures our CM296 in our Brisbane Headquarters.
Per Australian Standards, each component is marked with:
- Tow Ball Size: 70mm
- Manufacturer: Couplemate
- Tow Ball Rating: 4.5T
- Batch Number: Month / Year
Additional information
| Weight | 4 kg |
|---|---|
| Dimensions | 22 × 10 × 10 cm |
| Materials | High Tensile Steel (4140) |
| Max. ATM | 4500kg (4.5t) |
| Coating | Chrome |
| D-Value | 23.3kN |
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.
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