Ark 2-Hole Threaded Coupling for RHS Drawbars | 50mm Ball Mount – 2000kg Rated Zinc (SKU: CAB22Z)
$49.99 $51.09
Durable 2-hole trailer coupling for 50mm ball heads. Features threaded adjuster (7/8″ BSW), lockable latch, and zinc finish. Fits RHS drawbars, rated up to 2000kg.
Out of stock
Ark 2-Hole Threaded Coupling – 50mm Ball | Suits RHS Drawbars (SKU: CAB22Z)
The ARK CAB22Z is a 2-hole zinc-plated trailer coupling designed to fit 50mm tow balls. It suits RHS-style drawbars and includes a threaded adjuster (7/8″ BSW) for a secure fit. Built tough for trailers up to 2000kg, it also includes a padlock facility for added security.
Key Features:
- Threaded adjuster with 7/8” BSW thread for custom fit
- Designed for 50mm ball heads
- Rated up to 2000kg
- Fits RHS drawbars with 2-hole mounting
- Padlock-ready latch for added security
- Zinc plated for corrosion resistance
- Complies with AS4177.3 – 2004
Secure, strong, and adjustable—this coupling is built for trailers that mean business.
Related
Frequently Asked Questions
Q: What drawbar does this coupling fit?
A: It suits RHS drawbars (rectangular hollow section) with 2-hole standard mounting.
Q: What size tow ball is required?
A: It is designed for 50mm ball heads, which is standard in Australia.
Q: What’s the load rating?
A: It is rated up to 2000kg, making it suitable for medium trailers and campers.
Q: Is it adjustable?
A: Yes, it has a built-in threaded adjuster (7/8” BSW) for fine-tuning the fit on the ball.
Q: Can I lock it?
A: Absolutely. It includes a padlock facility for added security when parked or in storage.

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