Heavy Duty Trailer U-Bolt Kits
Built Tough for Australian Roads
Premium Hot Dip Galvanized Trailer U-Bolt Kits manufactured from High Tensile Steel for superior strength, corrosion resistance and long-lasting performance. Designed to suit Australian caravans, utility trailers, camper trailers, boat trailers, horse floats and commercial trailers.
Applications
A trailer U-bolt is a high-strength, U-shaped threaded fastener primarily used to clamp a trailer’s axle directly to its leaf spring suspension assembly. By wrapping tightly around the axle tube or the trailer frame, it secures load-bearing components and prevents dangerous axle shifting or rotation during towing.
🚛 Box Trailers
Securely clamps leaf springs to trailer axles for reliable everyday transport.
🚐 Caravan Trailers
Built for long-distance towing with excellent durability and strength.
⛵ Boat Trailers
Hot Dip Galvanized finish provides superior corrosion protection in marine environments.
🏕 Camper Trailers
Ideal for off-road adventures and rough Australian terrain.
🐎 Horse Floats
Provides dependable suspension support for safe livestock transport.
🚜 Agricultural Trailers
Suitable for demanding farm applications and heavy loads.
🚚 Utility Trailers
Perfect for commercial trades and domestic hauling applications.
🚧 Plant Trailers
Heavy-duty construction for transporting machinery and equipment.
How to Choose the Right Trailer U-Bolt
- Measure your axle accurately.
- Identify whether the axle is square or round.
- Select the correct U-Bolt diameter.
- Check the thread specification.
- Choose High Tensile Steel for heavy-duty use.
- Select Hot Dip Galvanized finish for corrosion resistance.
- Confirm compatibility with your suspension system.
- Always replace U-Bolts in pairs for even load distribution.
Most Popular Australian Trailer U-Bolt
5/8" × 67mm × 170mm
Designed to fit 65mm Square Axles, this Heavy Duty Trailer U-Bolt Kit is ideal for caravans, utility trailers, camper trailers, horse floats, boat trailers and commercial box trailers.
- High Tensile Steel
- Hot Dip Galvanized Finish
- 5/8"-11 UNC Thread
- Corrosion Resistant
- Heavy Duty Construction
Benefits
- ✔ High Strength Steel
- ✔ Long Service Life
- ✔ Corrosion Resistant Finish
- ✔ Precision Manufactured Threads
- ✔ Easy Installation
- ✔ Heavy Duty Performance
- ✔ Suitable for Australian Conditions
- ✔ Commercial & Recreational Use
Why Choose Our Trailer U-Bolts?
Our premium Trailer U-Bolts are manufactured from high tensile steel and finished with Hot Dip Galvanizing to deliver exceptional strength and corrosion resistance. Designed for Australia's demanding road conditions, they are trusted by trailer manufacturers, repair workshops, fleet operators, and DIY enthusiasts. Whether you are towing a caravan, launching a boat, transporting machinery, or hauling equipment, our U-Bolt Kits provide reliable suspension support and long-lasting performance.
Why Choose Us
Premium Materials
Strict Quality Control
Competitive Pricing
Australia-wide Supply
Bulk Orders Welcome