These 39mm Galvanised U Bolts include Nyloc Nuts and Flat Washers for a stronger bind. They are rated at 375kg each or 1500kg per set of 4 on a single axle. Galvanised to resist corrosion making them ideal for marine and boat trailer applications. They are often referred to as 40mm Round Ubolts or UBR40

Designed to suit 45mm Wide Trailer Springs

Specifications
Suits 39mm (1 1/2") Round Axles - Also known as 40mm Round
125mm (5") Long
1/2" Diameter Material
55mm Thread Length
1/2" BSW Thread
Nyloc Nuts & Flat Washers
Galvanised to Resist Corrosion

Kit Includes
4 x 39mm (1 1/2") x 125mm (5") Round Galvanised U Bolts with Nyloc Nuts & Flat Washers
2 x Galvanised Slotted Fish Plates 88mm x 100mm x 8mm
2 x Galvanised Axle Pads 40mm x 40mm x 8mm

U-Bolt Size Fitting Chart
Axle Size Spring Leafs Recommended
U-bolt Size
     
39mm Round 3 Leaf 39mm x 100mm (4")
39mm Round 4 Leaf 39mm x 115mm (4 1/2")
39mm Round 5 Leaf 39mm x 125mm (5")

How to Measure U-Bolts:
Measure the width of the U-bolts from the inside of the bolt. For example 75mm Ubolts fit around a 75mm drawbar or chassis rail. The length of a U-bolt is also measured from the inside of the U-bolt.

 

SKU UBR39X125G-K
Brand TRU
Shipping Weight 2.3500kg
Unit Of Measure ea

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