Description
80mm Square Galvanised U Bolt – Nylocks – Washer
80mm Square Galvanised U-Bolt made by Couplemate. We manufacture it own galvanised U-bolts. U-bolts can be supplied bulk with nuts and washers on the threads in boxes of 50.
Rolled threads with gal flat washer + gal nylock. Thread length is 60mm.
How do I calculate the correct length, measure
- Spring width plus
- Axle Pad 8mm plus
- Axle width plus
- Nylock plus
- 5mm thread through nylock
For example, 3 leaf slipper on 39mm Round axle is
18mm Spring + 8mm Axle spacer + 39mm axle + Nylock 15mm + 5mm
Total U-bolt minimum length = 120mm
How to Measure U-bolts (example)
It is important you retighten U bolts approx 200lkms after installation due to steels ability to stretch a little under load.
U bolts are a major cause of caravan wheel alignment problems.
U bolts generally fail due to hydrogen embrittlement. Hydrogen embrittlement occurs during bending and galvanising. At Couplemate we have an extra process that removes hydrogen embrittlement to produce st class u bolts.
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.
Our ubolts are derated to 375kg each or 1500kg per set of 4 or enough ubolts to suit a single axle.
The max rating of 60mm Round axles is 3000kg with ubolt rating @ 1500kg.
Galvanised u bolt clamp lits are listed below
- 50mm Square Galvanised Ubolt Clamp Kit
- 56mm Galvanised UBolt 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 |
80mm Square Galvanised U Bolt – Nylocks – Washer
Couplemate Trailer Parts sells only the best quality 80mm Square Galvanised Chassis U-Bolt 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 April 21, 2017. 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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