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Square u bolts 40mm, 45mm, 50mm, 65mm, 75mm, 100mm Ubolts x2

$2.00$40.00 GST

Square u bolts 40mm, 45mm, 50mm, 65mm, 75mm, 100mm Ubolts x2


Square u bolts 40mm, 45mm, 50mm, 65mm, 75mm, 100mm Ubolts x2

These U Bolts are rated at 375kg each or 1500kg per set of 4 on a single axle. Zinc coated to resist corrosion. Ideal for Trailer, caravan and horse float applications.

  • Sold as pair
  • Zinc coated finish
  • Length and width are internal dimensions.
  • Thread size is 1/2″ (except J29, J34 & J37 which are 5/8″)
  • Included are 4x nylok nuts
  • Note some Ubolts may come with 4 standard nuts instead.
  • Colour may vary depending on stock.

J29, J34 & J37 U bolts are for 2000kg up to 4000kg gross trailers and caravans.


Measure U-bolts from the inside of the bolt. For example 75mm U-bolts fit 75mm drawbars or chassis rails. The length of a U-bolt is also measured from the inside of the U-bolt.


Available in the following sizes:

  • 40mm wide x 120mm long
  • 40mm wide x 140mm long
  • 45mm wide x 115mm long clearance
  • 45mm wide x 125mm long
  • 45mm wide x 140mm long
  • 45mm wide x 150mm long
  • J29 – 45mm wide x 155mm long 5/8″ Thread
  • 50mm wide x 125mm long
  • 50mm wide x 140mm long
  • J34 – 50mm wide x 150mm long 5/8″ Thread
  • J37 – 65mm wide x 170mm long 5/8″ Thread
  • 75mm wide x 80mm long
  • 100mm wide x 75mm long



Shop for the best selection of U bolts for your boat trailer, caravan or horse float at the Trailer & Caravan Superstore.

Traralgon Trailers was established in 1980. We build trailers & supply an extensive range of trailer parts, caravan parts and accessories both locally and throughout Australia. We are now known as Trailer and Caravan Superstore. Our family-owned and operated company has built a strong reputation for professional and reliable services which exceed our customer’s expectations. As well as parts and accessories, we also have a repair centre where we can both repair your damaged trailer, service, or fit any parts and accessories that you have purchased in our store. If you have any questions or need advice on tie down anchor points, ute tie down points, trailer tie down points, tie down points and lashing rings or any other item we sell, please contact our sales team on (03) 5175 0998 or by email.

Additional information

Weight .800 kg
Dimensions 12 × 20 × 5 cm

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