Heavy Duty U-bolts 16mm
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16mm Heavy Duty U-bolts suited to caravans and trailers over 1500kg
16mm heavy-duty U-bolts suited to caravans and trailers over 1500kg. U-bolts over 1500kg need to withstand greater shock loadings.
Heavy-duty hardware is ideal for trailers with a weight capacity of over 3t and up to 4.5t ATM.
Heavy Duty U-Bolt and Plate Kit
- 4 x 16mm Galvanised U-Bolts
- 8 x 16mm Nylock Nuts
- 8 x 16mm Galvanised Washers
- 1 x 10mm ElectroGal Fishplate
- 2 x 10mm Axle Pads – to be welded to the Axle
Re-tightening u-bolts
Re-tightened after 300 kilometres from installation.
Loose u-bolts cause problems. These problems include
- Spring slippage off the axle.
- Moving axles backwards of the spring centre.
- Broken springs.
- Brake cable and wiring damage.
- Excess tyre wear.
- Axle separation from the trailer.
- Damage to caravan skirts.
- Damage to water and sullage tanks.
Loose u-bolts are a major cause of caravan accidents therefore, we recommend re-tightening.
Please be advised not all stock is available – please contact our sales team for the specific size you are interested if it is not listed on the website.
| A
Round U-Bolts |
A
Square U-Bolts |
B
Width |
C
Height |
Part Number |
|---|---|---|---|---|
| 1 ½ inch (39mm) | ½ inch (12.7mm) | 4 inch (100mm) | U39R4GH | |
| 1 ½ inch (39mm) | ½ inch (12.7mm) | 4½ inch (112mm) | U39R45GH | |
| 1 ½ inch (39mm) | ½ inch (12.7mm) | 5 inch (125mm) | U39R5GH | |
| 1 ½ inch (39mm) | ½ inch (12.7mm) | 5½ inch (137mm) | U39R55GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 4 inch (100mm) | U45R4GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 4½ inch (112mm) | U45R45GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 5 inch (125mm) | U45R5GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 5½ inch (137mm) | U45R55GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 6 inch (150mm) | U45R6GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 6½ inch(162mm) | U45R65GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 4 inch (100mm) | U50R4GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 4½ inch (112mm) | U50R45GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 5 inch (125mm) | U50R5GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 5½ inch (137mm) | U50R55GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 6 inch (150mm) | U50R6GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 6½ inch(162mm) | U50R65GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 7 inch (175mm) | U50R7GH | |
| 1 ½ inch (40mm) | ½ inch (12.7mm) | 4 inch (100mm) | U40S4GH | |
| 1 ½ inch (40mm) | ½ inch (12.7mm) | 4½ inch (112mm) | U40S45GH | |
| 1 ½ inch (40mm) | ½ inch (12.7mm) | 5 inch (125mm) | U40S5GH | |
| 1 ½ inch (40mm) | ½ inch (12.7mm) | 5½ inch (137mm) | U40S55GH | |
| 1 ½ inch (40mm) | ½ inch (12.7mm) | 6 inch (150mm) | U40S6GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 4 inch (100mm) | U45S4GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 4½ inch (112mm) | U45S45GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 5 inch (125mm) | U45S5GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 5½ inch (137mm) | U45S55GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 6 inch (150mm) | U45S6GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 6½ inch(165mm) | U45S65GH | |
| 1 ¾ inch (45mm) | ½ inch (12.7mm) | 7 inch (175mm) | U45S7GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 3 inch (75mm) | U50S3GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 4 inch (100mm) | U50S4GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 4½ inch (112mm) | U50S45GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 5 inch (125mm) | U50S5GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 5½ inch (137mm) | U50S55GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 6 inch (150mm) | U50S6GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 6½ inch (165mm) | U50S65GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 7 inch (175mm) | U50S7GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 8 inch (200mm) | U50S8GH | |
| 2 inch (50mm) | ½ inch (12.7mm) | 10 inch (250mm) | U50S10GH | |
| 2 ¼ inch (56mm) | ½ inch (12.7mm) | 4½ inch (112mm) | U56S45GH | |
| 2 ¼ inch (56mm) | ½ inch (12.7mm) | 5 inch (125mm) | U56S5GH | |
| 2 ¼ inch (56mm) | ½ inch (12.7mm) | 5½ inch (137mm) | U56S55GH | |
| 2 ¼ inch (56mm) | ½ inch (12.7mm) | 6½ inch (165mm) | U56S65GH | |
| 3 inch (75mm) | ½ inch (12.7mm) | 3 inch (75mm) | U75S75GH | |
| 3 inch (75mm) | ½ inch (12.7mm) | 4 inch (100mm) | U75S100GH | |
| 3 inch (75mm) | ½ inch (12.7mm) | 5 inch (125mm) | U75S125GH | |
| 3 inch (75mm) | ½ inch (12.7mm) | 6 inch (150mm) | U75S150GH | |
| 3 inch (75mm) | ½ inch (12.7mm) | 7 inch (175mm) | U75S175GH | |
| 3 ¼ inch (82mm) | ½ inch (12.7mm) | 4 ¾ inch (120mm) | U80S120GH | |
| 4 inch (100mm) | ½ inch (12.7mm) | 3 inch (75mm) | U100S75GH | |
| 4 inch (100mm) | ½ inch (12.7mm) | 4 inch (100mm) | U100S100GH | |
| 4 inch (100mm) | ½ inch (12.7mm) | 5 inch (125mm) | U100S125GH | |
| 4 inch (100mm) | ½ inch (12.7mm) | 8 inch (200mm) | U100S200GH | |
| 1 ¾ inch (45mm) | ⅝ inch (16mm) | 6 inch (150mm) | CM600GH | |
| 2 inch (50mm) | ⅝ inch (16mm) | 6 inch (150mm) | CM602GH | |
| 2 ⅓ inch (60mm) | ⅝ inch (16mm) | 7 inch (175mm) | CM604GH | |
| 1 ¾ inch (45mm) | ⅝ inch (16mm) | 6 inch (150mm) | CM601GH | |
| 2 inch (50mm) | ⅝ inch (16mm) | 7 inch (175mm) | CM603-7GH |