MANUTEC Hi-Tensile Trailer U-Bolt 80x115mm with Nyloc Nuts – 16mm Diameter (SKU: PWUBOLT/3X3-HT)
$25.00
Heavy-duty hi-tensile U-bolt 80x115mm from MANUTEC with 16mm rod and nyloc nuts. Ideal for high-load trailer axle and suspension mounting.
In stock
MANUTEC Hi-Tensile U-Bolt 80x115x16mm – When Standard Isn’t Strong Enough
This MANUTEC high-tensile U-bolt is engineered for serious trailer duty where regular hardware just won’t cut it. With a width of 80mm and a leg length of 115mm, and forged from 16mm hi-tensile steel, it’s built to withstand the rigours of heavy loads, bumpy terrain, and relentless vibration.
Key Features:
- Hi-Tensile Strength: Designed for critical load-bearing points where high resistance to stress and strain is required.
- Precision Fit: 80mm internal width and 115mm leg length make it ideal for common trailer axle and chassis applications.
- Vibration Resistant: Includes nyloc nuts to keep the bolt tight even under constant movement or off-road conditions.
- Rugged Finish: Corrosion-resistant coating suitable for outdoor, highway, and heavy industrial trailer builds.
This U-bolt is commonly used in suspension systems, axle clamps, and structural brackets where strength and durability matter most. Perfect for boat trailers, off-road trailers, livestock carriers, and any setup requiring maximum tensile capacity in compact dimensions.
Specifications:
- Internal Width: 80mm
- Internal Leg Length: 115mm
- Rod Diameter: 16mm (Hi-Tensile Steel)
- Weight: 0.476kg
- Includes Nyloc Nuts
Related
Frequently Asked Questions
Q: What does ‘Hi-Tensile’ mean?
A: It refers to the steel’s higher tensile strength rating, meaning it can handle more load before deforming or breaking. Ideal for heavy-duty applications.
Q: Will this fit a 75mm axle?
A: With an 80mm internal width, it may fit over a 75mm axle with minor gap – suitable when paired with washers or saddles.
Q: Can I use this on a caravan or camper trailer?
A: Yes – it’s a popular choice for suspension upgrades and secure mounting of axle components.
Q: Are nyloc nuts included?
A: Yes, this U-bolt comes with nyloc nuts to prevent loosening during use.
| Weight | 25 kg |
|---|---|
| Dimensions | 14 × 11 × 5 cm |
| Location | C -2-5 |
| Featured Refinements | |
| Manufacturer Part Number | |
| Brand |
Evaluation & Recommendation
This U-bolt is perfect for anyone dealing with demanding towing conditions – whether on the farm, highway, or off-road tracks. If your trailer endures high impact or carries valuable loads, the hi-tensile strength offers extra security and longevity.
If unsure whether this U-bolt is suitable for your setup, or need variations in size or shape, contact us and we’ll match you with the right fit.
Installation Advice:
- Check exact axle or bracket width before choosing this model.
- Use torque tools to ensure even pressure during tightening.
- Pair with washers and nyloc nuts for long-term retention.

Table Support Leg – 457mm Folding Hinged Leg for RV & Caravan Bed Conversions (SKU: 007875)
Hayman Reese Trailer Pintle Hook Forged 5 ton
Manutec 8" Medium Duty Solid Rubber Jockey Wheel Clamp-On Style 700kg Load (SKU: JW4NC)
TROJAN Trailer Adaptor Large Round 7 Pin Plug to Small Round 7 Pin Socket
Trailer Adaptor 7 Pin Large Round Socket To 7 Pin Flat Plug Trailer Adapter
TROJAN Trailer Adaptor – 7 Pin Large Round Plug to 6 Pin Small Round Socket Converter (SKU: 82253)
ARK 7 Pin Trailer Plug Adapter – Small Round Socket to Large Round Plug, Brass Terminals (SKU: 7S27LP)
1x ARK Trailer 10" Oval Electric Brake Magnet EBPMAG UB
2x Amber Reflector 43x73mm Self Adhesive and Bolt on Trailer Caravan Camper
Pro Series Trailer Towbar Toungue Hitch Pin Lock Extra Long
Hayman Reese Genuine Accessories Hitch Pin Quick Release
10x Plastic P Clips Clamp Assortment Kit for Wire Cable 8MM 5/16 inch
ARK Trailer Weight Distribution System Load Lever 365-545kg Rate MAX 1200Ibs
ARK Trailer Hitch Receiver Cover 50mm Black | Removable Cap for 2" Tow Bar (SKU: HC50B)
Hayman Reese Hitch Box Cover Tow Bar Hitch Receiver Cover, Insert 50mm X 50mm
MANUTEC Trailer Wheel Nut 9/16" Zinc for HT HQ Holden Hub Stud 

0415343379