Stainless Steel U-Bolts (DIN Standard)
DISLAB Precision
U-bolts are essential pipe and tube fasteners used across construction, plumbing, marine, and electrical applications. They are U-shaped threaded bolts designed to secure pipes, conduits, and round bars to surfaces, brackets, or beams. When installed with matching nuts, they provide a strong, stable hold that resists movement, vibration, and corrosion.
Our stainless steel U-bolts are made from high-quality 304 and 316 stainless steel, grade A2, and comply with DIN standards. They come in two primary styles: round bend U-bolts for pipes, and square U-bolts for square tubing or flat surfaces. All threads are precision rolled for a tight fit, and they are supplied with hex nuts, with optional U-bolt plates or clamps available. Sizes cover pipe diameters from 1/4″ to 20″, with common thread sizes including M8, M10, and M20, and lengths from 40mm to 70mm, plus custom options available.
Manufactured for durability, these U-bolts are corrosion-resistant, easy to install with standard hand tools, and require minimal maintenance. The bright, polished finish means no touch-up painting is needed, even in outdoor or marine environments.
Main Product Advantages
🔩 Corrosion-Resistant Materials
Made from 304 or 316 stainless steel to prevent rust in wet, outdoor, and marine environments.
⚙️ Precision Rolled Threads
Consistent thread pitch ensures a secure fit with standard hex nuts, reducing risk of loosening.
🔄 Versatile Design Options
Round bend, square bend, or “Y” type U-bolts available, with optional plates, clamps, or brackets.
📦 Complete Assembly
Supplied with one or two hex nuts per leg, ready for installation out of the box.
Key Specifications
| Standards | DIN standard U-bolts, compatible with UNC threads |
|---|---|
| Materials | Stainless Steel 304 / 316 (Grade A2) |
| Finishes | Plain polished, zinc-plated |
| Thread Sizes | M8, M10, M20, and custom sizes available |
| Pipe/Tube Sizes | 1/4″ to 20″ inclusive (custom sizes up to 1″ diameter) |
| Lengths | Common: 40mm, 70mm; custom lengths available |
| Nuts per Bolt | 1 or 2 hex nuts per leg, depending on size |
| Styles | Round bend U-bolt, square U-bolt, U-bolt with plate, U-bolt clamp, double U-bolt |
| Applications | Electrical conduit, mechanical piping, marine hardware, construction, and more |
| Packaging | Standard cartons with bulk packing |
| Lead Time | 5-15 days for standard sizes |
| Sample Service | Freely supplied |
| OEM/ODM | Available, custom sizes and finishes on request |
Common Applications
- Electrical conduit and pipe support systems
- Rigid conduit mounting
- Marine hardware & boat pipe installations
- Construction & structural beam fastening
- Plumbing and piping support
- Automotive trailer and truck frame mounting
- Agricultural equipment assembly
- Outdoor fence and railing installation
Product Variations
Basic U-shaped bolt, ideal for securing round pipes to beams or brackets.
Complete assembly with two hex nuts per leg for heavy-duty stability.
Includes backing plate for even pressure distribution and reinforced mounting.
Designed for secure pipe clamping, used in plumbing & electrical systems.
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📦 Real Customer Case – Bulk Order to New Zealand
We recently fulfilled a large order of stainless steel U-bolts for a New Zealand customer who specializes in marine and electrical construction projects. The customer needed 8,000 pieces of M10 stainless steel 316 U-bolts with two hex nuts each, in a 70mm length. They required high corrosion resistance to withstand New Zealand’s coastal climate, along with precise dimensions to fit their standard electrical conduit sizes.
We confirmed the material grade, finish, and exact pipe size requirements with the customer. Our team then ran full inspections on thread quality, surface finish, and corrosion resistance before packing the order. The U-bolts were packaged in standard cartons with clear labeling and shipped to New Zealand. After receiving the goods, the customer confirmed the U-bolts fit perfectly with their conduits and exceeded their expectations for rust resistance in saltwater environments.
This order demonstrates our ability to meet both standard and custom bulk requirements for fasteners. We keep common sizes in stock and offer fast delivery for repeat orders.
Why Choose DISLAB Precision
At DISLAB Precision, we are your trusted global supplier of industrial parts and accessories, including fasteners, spacers, standoffs, and custom hardware solutions.
Backed by a network of 300+ qualified partner facilities, we deliver over 50 million pieces monthly, supporting both small sample orders and large-volume bulk projects. Every product undergoes strict quality checks for material grade, dimensional accuracy, and surface finish before delivery.
With 40+ engineering and sourcing experts on our team, we ensure consistent quality, reliable lead times, and flexible solutions tailored to your needs. We offer OEM/ODM services, custom material options, and flexible packing to meet the unique requirements of customers worldwide.
If you need industrial parts or accessories for your project or bulk supply, contact us today to discuss your specifications and get a quote.
✅ High quality | 🌍 Global shipping | 📐 Custom drawing support
Direct Contact Channels
- One-stop service: design, customization, production, and global delivery
- OEM/ODM solutions for industrial and export-oriented buyers
