39mm Round Galvanised U-Bolt Incl Gal Nylocks

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39mm Round Galvanised U-Bolt Incl Gal Nylocks

39mm round galvanised U-bolt made by Couplemate. We manufacture our own galvanised U bolts.

Rolled threads with gal flat washer and galvanised nylocks. The thread length is 60mm.

How do I calculate the correct length? Measure

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

Ensure the thread passes through the nylon in the nut. The nylon captive insert is the key to locking a Nylock nut onto a thread.

Removing the Nylock nut weakens the nylon insert upon reuse.

How to Measure U-bolts (example)

Measure u-bolts from the inside of the U-bolt to the tip of the thread.

It would be best to retighten U-bolts approximately 200lkms after installation due to steels ability to stretch a little under load.

Furthermore, we stress-tested these u -bolts during manufacture and batch test until destruction.

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

Finally, 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 750kg axles is 750kg with U-bolt rating @ 1500kg.

The humble U-bolt is a major cause of caravan accidents.

We think so; read here.

Galvanised u bolt clamp kits are listed below

Additional information

Weight 0.5 kg
Dimensions 10 × 6 × 6 cm
U Bolt Length

100mm, 112mm, 125mm, 137mm, 150mm

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