2x ARK Galvanised Square U Bolts 60x110mm Arm Length with 50mm Thread for Trailer & Caravan (SKU: MRUB3G)
$19.00
Pair of heavy-duty galvanised U bolts. 60mm wide, 110mm arm length, 50mm thread. Ideal for trailer suspension, axle brackets, and frame clamping.
In stock
ARK MRUB3G Galvanised U Bolts are long-arm, heavy-duty square U bolts built for securely fastening trailer axles, spring hangers, chassis plates, or any steel frame section. With a generous 110mm leg length and 50mm threaded section, they’re ideal for deeper components and thicker beams.
These U bolts have a 60mm internal width and are made from tough 1/2″ diameter steel, coated with a protective galvanised finish for rust resistance in harsh weather or marine environments. They are a perfect choice for high-vibration towing setups that need solid, long-term hold.
Specifications:
- Internal width: 60mm
- Arm length: 110mm
- Thread length: 50mm
- Thread diameter: 1/2″ (approx. 12.7mm)
- Shape: Square U bolt
- Finish: Hot-dip galvanised
- Quantity: 2 bolts per set
Whether you’re replacing worn-out clamps or installing a new axle bracket, these U bolts offer dependable performance and rust-proof durability.
Related
FAQ
- Q: What size beam or chassis does this fit?
- A: It fits 60mm wide box sections or bracket plates. The 110mm length is suitable for deep mounting applications.
- Q: Are nuts and washers included?
- A: This listing includes only the U bolts. We recommend pairing with 1/2” UNF hardware.
- Q: Is this suitable for saltwater or coastal use?
- A: Yes! The galvanised finish helps prevent corrosion in marine or damp environments.
- Q: Can I use this on a boat trailer?
- A: Absolutely. It’s a great fit for boat trailers, utility trailers, and general trailer suspension systems.
Weight | 0.6 kg |
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Dimensions | 13 × 9 × 5 cm |
Location | A-1-X |
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Evaluation & Recommendation
The MRUB3G is a heavy-duty solution for deeper or thicker mounting requirements. If you need strong clamping power for longer brackets or to secure multiple layers—this U bolt is your go-to hardware.
Recommended for:
- Boat trailers and marine applications
- Heavy-duty spring bracket mounting
- Axle plate clamps for larger beams or double plates
- Steel frame constructions needing rust-resistant clamping
Installation Tips:
- Clean contact surfaces before clamping
- Use matching galvanised washers and nyloc nuts
- Apply torque evenly across both threads to avoid distortion
Need help choosing the right size? Contact us with your beam dimensions—we’ll help you find the best fit from our U bolt range.