Description
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)
It would be best if you retightened 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.
Galvanised u bolt clamp kits are listed below
- 50mm Square Galvanised U-bolt Clamp Kit
- 56mm Galvanised U-Bolt Clamp Kit
- 75mm Galvanised U-bolt Clamp Kit
- 100mm Galvanised U-bolt Clamp Kit
| A Round U-Bolts | A Square U-Bolts | B Width | C Height | Part Number |
|---|---|---|---|---|
| 1 ½” (39mm) | ½” (13mm) | 4″ (100mm) | U39R4GH | |
| 1 ½” (39mm) | ½” (13mm) | 4½” (112mm) | U39R45GH | |
| 1 ½” (39mm) | ½” (13mm) | 5″ (125mm) | U39R5GH | |
| 1 ½” (39mm) | ½” (13mm) | 5½” (137mm) | U39R55GH | |
| 1 ¾” (45mm) | ½” (13mm) | 4″ (100mm) | U45R4GH | |
| 1 ¾” (45mm) | ½” (13mm) | 4½” (112mm) | U45R45GH | |
| 1 ¾” (45mm) | ½” (13mm) | 5″ (125mm) | U45R5GH | |
| 1 ¾” (45mm) | ½” (13mm) | 5½” (137mm) | U45R55GH | |
| 1 ¾” (45mm) | ½” (13mm) | 6″ (150mm) | U45R6GH | |
| 1 ¾” (45mm) | ½” (13mm) | 6½”(162mm) | U45R65GH | |
| 2″ (50mm) | ½” (13mm) | 4″ (100mm) | U50R4GH | |
| 2″ (50mm) | ½” (13mm) | 4½” (112mm) | U50R45GH | |
| 2″ (50mm) | ½” (13mm) | 5″ (125mm) | U50R5GH | |
| 2″ (50mm) | ½” (13mm) | 5½” (137mm) | U50R55GH | |
| 2″ (50mm) | ½” (13mm) | 6″ (150mm) | U50R6GH | |
| 2″ (50mm) | ½” (13mm) | 6½”(162mm) | U50R65GH | |
| 2″ (50mm) | ½” (13mm) | 7″ (175mm) | U50R7GH | |
| 1 ½” (40mm) | ½” (13mm) | 4″ (100mm) | U40S4GH | |
| 1 ½” (40mm) | ½” (13mm) | 4½” (112mm) | U40S45GH | |
| 1 ½” (40mm) | ½” (13mm) | 5″ (125mm) | U40S5GH | |
| 1 ½” (40mm) | ½” (13mm) | 5½” (137mm) | U40S55GH | |
| 1 ½” (40mm) | ½” (13mm) | 6″ (150mm) | U40S6GH | |
| 1 ¾” (45mm) | ½” (13mm) | 4″ (100mm) | U45S4GH | |
| 1 ¾” (45mm) | ½” (13mm) | 4½” (112mm) | U45S45GH | |
| 1 ¾” (45mm) | ½” (13mm) | 5″ (125mm) | U45S5GH | |
| 1 ¾” (45mm) | ½” (13mm) | 5½” (137mm) | U45S55GH | |
| 1 ¾” (45mm) | ½” (13mm) | 6″ (150mm) | U45S6GH | |
| 1 ¾” (45mm) | ½” (13mm) | 6½”(165mm) | U45S65GH | |
| 1 ¾” (45mm) | ½” (13mm) | 7″ (175mm) | U45S7GH | |
| 2″ (50mm) | ½” (13mm) | 3″ (75mm) | U50S3GH | |
| 2″ (50mm) | ½” (13mm) | 4″ (100mm) | U50S4GH | |
| 2″ (50mm) | ½” (13mm) | 4½” (112mm) | U50S45GH | |
| 2″ (50mm) | ½” (13mm) | 5″ (125mm) | U50S5GH | |
| 2″ (50mm) | ½” (13mm) | 5½” (137mm) | U50S55GH | |
| 2″ (50mm) | ½” (13mm) | 6″ (150mm) | U50S6GH | |
| 2″ (50mm) | ½” (13mm) | 6½”(165mm) | U50S65GH | |
| 2″ (50mm) | ½” (13mm) | 7″ (175mm) | U50S7GH | |
| 2″ (50mm) | ½” (13mm) | 8″ (200mm) | U50S8GH | |
| 2″ (50mm) | ½” (13mm) | 10″ (250mm) | U50S10GH | |
| 2 ¼” (56mm) | ½” (13mm) | 4½” (112mm) | U56S45GH | |
| 2 ¼” (56mm) | ½” (13mm) | 5″ (125mm) | U56S5GH | |
| 2 ¼” (56mm) | ½” (13mm) | 5½” (137mm) | U56S55GH | |
| 2 ¼” (56mm) | ½” (13mm) | 6½”(165mm) | U56S65GH | |
| 3″ (75mm) | ½” (13mm) | 3″ (75mm) | U75S75GH | |
| 3″ (75mm) | ½” (13mm) | 4″ (100mm) | U75S100GH | |
| 3″ (75mm) | ½” (13mm) | 5″ (125mm) | U75S125GH | |
| 3″ (75mm) | ½” (13mm) | 6″ (150mm) | U75S150GH | |
| 3″ (75mm) | ½” (13mm) | 7″ (175mm) | U75S175GH | |
| 3 ¼” (82mm) | ½” (13mm) | 4 ¾” (120mm) | U80S120GH | |
| 4″ (100mm) | ½” (13mm) | 3″ (75mm) | U100S75GH | |
| 4″ (100mm) | ½” (13mm) | 4″ (100mm) | U100S100GH | |
| 4″ (100mm) | ½” (13mm) | 5″ (125mm) | U100S125GH | |
| 4″ (100mm) | ½” (13mm) | 8″ (200mm) | U100S200GH | |
| 1 ¾” (45mm) | ⅝” (16mm) | 6″ (150mm) | CM600GH | |
| 2″ (50mm) | ⅝” (16mm) | 6″ (150mm) | CM602GH | |
| 2 ⅓” (60mm) | ⅝” (16mm) | 7″ (175mm) | CM604GH | |
| 1 ¾” (45mm) | ⅝” (16mm) | 6″ (150mm) | CM601GH | |
| 2″ (50mm) | ⅝” (16mm) | 7″ (175mm) | CM603-7GH |
Couplemate Trailer Parts sells only the best quality 39mm Round Galvanised U-Bolt Incl Gal Nylocks and caravan spare parts throughout Australia.
Customers are welcome to either pickup or take advantage of our low freight rates. Express shipping to Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and Hobart.
We also ship products to New Zealand via Australia Post Air Express.
© Steve Wotherspoon June 15, 2014. Images and text may be copied, provided a link back to the copied page and the source is displayed where the content or image is located.
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