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50mm Square Galvanised U-Bolt Kit

Wholesale prices are available to approved account customers only.

SKU: U50SGH Category:
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50mm Square Galvanised U Bolt Kit – Gal Nylocks – Gal Washers

50mm square galvanised U-Bolt kit includes galvanised nylocks and washers.

Further, the 50mm square galvanised U bolt has rolled threads as opposed to cut threads. Additionally,

  • the thread length is 60mm.
  • The thread size is 1/2″ BSW.

Four elements uniquely define any U-bolt, they are

  1. Material type (for example bright zinc-plated mild steel or galvanised)
  2. Thread dimensions (for standard 1/2″ )
  3. Inside diameter (for example 50 mm – the distance between the legs)
  4. Inside height (for example 125 mm)

Mild steel stretches under load. It is essential you re-tighten u-bolts approx 200 km after installation.

Loose u-bolts cause accidents

Catastrophic consequences on a truck chassis were the result of incorrect u-bolt tightening.

Furthermore, u-bolts are stress-tested during manufacture and batch tested until destruction.

Destruction loads exceed 17,000kg for 1/2 inch galvanised u-bolts.

Finally, u-bolts are derated to 375kg each or 1500kg per set of 4 or enough u-bolts to suit a single axle.

The maximum rating of 750kg light trailer axles is 750kg with a u-bolt rating @ 1500kg.

Vibration fatigue can loosen u-bolts if not re-tightened after 300 km.

Excellent article on vibration fatigue here.

Customers are welcome to take advantage of our low freight rates. Express shipping to Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and Hobart.

We also ship products to New Zealand via Australia Post Air Express.

Purchase more U-bolts here

U Bolt Clamp Kits are available below

Additional information

Weight0.5 kg
Dimensions1 × 7 × 15 cm
Select Length

Length: 75mm (3"), Length: 100mm (4"), Length: 115mm (4.5"), Length: 125mm (5"), Length: 140mm (5.5"), Length: 150mm (6"), Length: 165mm (6.5"), Length: 175mm (7"), Length: 200mm (8"), Length: 250mm (10")