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45mm Square U-Bolt (w/ Hardware) – Galvanised

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SKU: U45SGH Category:
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45mm Square Galvanised U-Bolts

45mm Square Galvanised U-Bolt 45mm Square incl galvanised nylocks and washers. Available lengths are 100mm | 112mm | 125mm | 137mm | 150mm | 162mm | 175mm

Rolled threads with gal flat washer + gal nylock. The thread length is 60mm.

Some of the longer U-bolt lengths are difficult to locate. Couplemate carries a good stock of these longer U-bolts because we know you want them in a hurry. You have the choice at checkout to send via Express Post.

How do I calculate the correct length?

  • Spring width plus
  • Axle Pad 8mm plus
  • Axle width plus
  • Nylock plus

How to Measure U-bolts (example right image)

Why should I check and re-tighten U-bolts?

Firstly, you must retighten U-bolts approximately 200kms after installation due to steel's ability to stretch a little under load.

U-bolts generally fail due to hydrogen embrittlement. Hydrogen embrittlement occurs during bending and galvanising. At Couplemate, we have a new process that removes hydrogen embrittlement to produce ST class U-bolts.

What is the rating for u-bolts?

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

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

The max rating of 60mm Round axles is 3000kg with a u-bolt rating of 1500kg.

Read why U-bolts could be the primary cause of accidents.

This article is the catastrophic result of the incorrect tightening of the U-bolt on a truck chassis.

Additional information

Dimensions1 × 6 × 15 cm
Select Length

Length: 100mm (4"), Length: 115mm (4.5"), Length: 125mm (5"), Length: 140mm (5.5"), Length: 150mm (6"), Length: 165mm (6.5"), Length: 175mm (7")