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304 Stainless Steel U Bolts M6 M8 M10 M12 M16, Round Bend U-Bolts with Nuts and Washers for Pipe Clamp, Marine and Industrial Use

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Product Description

304 Stainless Steel U Bolts

Our 304 Stainless Steel U Bolts are strong, corrosion-resistant fasteners designed for clamping, fixing, and securing pipes, tubes, round bars, cables, brackets, and structural components. The U-shaped design allows the bolt to wrap around cylindrical objects and lock them firmly in place with matching nuts and washers.

Made from high-quality 304 stainless steel, these U-bolts offer good rust resistance, clean surface finish, and reliable durability for indoor, outdoor, marine-adjacent, automotive, construction, and industrial applications.

Available in common metric sizes such as M6, M8, M10, M12, and M16, these stainless steel U bolts can also be customized according to required diameter, inside width, thread length, total length, and application needs.


Key Features

  • 304 stainless steel material for good corrosion and rust resistance.
  • U-shaped round bend design for secure clamping around pipes, tubes, and round objects.
  • Metric thread sizes available including M6, M8, M10, M12, and M16.
  • Threaded ends allow fastening with matching nuts and washers.
  • Suitable for indoor and outdoor use in general environments.
  • Strong clamping performance for pipe supports, brackets, trailers, machinery, and structures.
  • Smooth stainless steel finish with clean appearance.
  • Custom dimensions available according to drawings, samples, or project requirements.

Product Specifications

Item Description
Product Name 304 Stainless Steel U Bolt
Material Stainless Steel 304
Shape U Shape / Round Bend
Thread Type Metric Thread
Common Sizes M6, M8, M10, M12, M16
Thread Direction Right Hand
Surface Finish Plain Stainless Steel
Accessories Nuts, Flat Washers, Spring Washers Available
Application Pipe clamp, tube fixing, trailer, marine hardware, machinery, construction
Customization Diameter, width, length, thread length, material, packaging

Common Size Options

Thread Size Material Common Use
M6 304 Stainless Steel Light pipe clamp, small bracket fixing, DIY projects
M8 304 Stainless Steel Tube clamp, railing, equipment mounting
M10 304 Stainless Steel Machinery, pipe support, frame connection
M12 304 Stainless Steel Heavy pipe fixing, trailer parts, construction use
M16 304 Stainless Steel Heavy-duty industrial mounting and structural fixing

Note: Actual width, height, thread length, and bend radius can be customized according to your application.


What Is a U Bolt?

A U bolt is a fastener shaped like the letter “U” with threaded ends on both sides. It is commonly used to clamp round objects such as pipes, tubes, shafts, cables, and rods.

When installed with nuts and washers, the U bolt provides stable holding force and prevents the object from moving, sliding, or vibrating.


Common Applications

Application Area Typical Use
Pipe and Tube Clamp Fixing round pipes, tubes, and conduits
Marine Hardware Boat fittings, dock parts, outdoor fixing
Automotive Trailer parts, exhaust systems, chassis brackets
Construction Pipe supports, steel structure connections
Machinery Equipment mounting and vibration-resistant fixing
Agricultural Equipment Brackets, frames, and pipe clamps
Railing Systems Handrails, guardrails, and round tube fixing
DIY Projects Custom frames, workshop repair, home installation

Material Advantages: Stainless Steel 304

304 stainless steel is widely used for fasteners because it offers a good balance of corrosion resistance, strength, and cost performance.

Material Main Feature Recommended Use
304 Stainless Steel Good corrosion resistance and clean surface General indoor, outdoor, machinery, pipe clamp, construction
316 Stainless Steel Better corrosion resistance in harsh environments Marine, coastal, chemical, high-humidity environments
Carbon Steel Higher strength options and lower cost Dry indoor use or coated fasteners

For most general outdoor and industrial applications, 304 stainless steel U bolts are a practical and reliable choice. For highly corrosive marine or chemical environments, 316 stainless steel may be recommended.


Matching Accessories

These U bolts can be supplied individually or as a complete set.

Accessory Function
Hex Nut Locks the U bolt in place
Flat Washer Distributes pressure and protects the surface
Spring Washer Helps improve anti-loosening performance
Plate Bracket Provides a larger clamping surface
Custom Clamp Plate Used for special pipe or equipment fixing

Product Advantages

Our 304 Stainless Steel U Bolts are designed for secure clamping and long-term durability. The U-shaped structure provides strong support around round components, while the threaded ends make installation simple and adjustable.

They are suitable for customers who need corrosion-resistant fasteners for pipe systems, machinery, vehicles, marine hardware, building structures, and custom industrial projects.

The stainless steel surface also provides a clean and professional appearance, making these U bolts suitable for visible installations.


Installation Notes

Before ordering, please confirm the following details:

Required Information Example
Thread Size M6, M8, M10, M12, M16
Inside Width Based on pipe or tube outside diameter
Total Height According to installation thickness
Thread Length Full thread length required for nut tightening
Material 304 stainless steel or 316 stainless steel
Accessories Nuts, washers, plates
Quantity Small pack or bulk order

Please measure the outside diameter of the pipe or tube before selecting the U bolt size. The inside width of the U bolt should match the object being clamped.


FAQ

Q1: What are stainless steel U bolts used for?

Stainless steel U bolts are used for clamping and securing pipes, tubes, cables, rods, brackets, trailer parts, machinery components, and structural supports.

Q2: What material are these U bolts made from?

They are made from 304 stainless steel, which provides good corrosion resistance and durability.

Q3: What sizes are available?

Common sizes include M6, M8, M10, M12, and M16. Other sizes can be customized according to customer requirements.

Q4: Do these U bolts come with nuts and washers?

They can be supplied with matching hex nuts, flat washers, and spring washers according to your order requirements.

Q5: Can these U bolts be used outdoors?

Yes. 304 stainless steel is suitable for many indoor and outdoor applications. For marine, coastal, or chemical environments, 316 stainless steel is recommended.

Q6: Can the width and height be customized?

Yes. The inside width, total height, thread length, bend radius, and material can be customized based on drawings, samples, or pipe size.

Q7: Are these U bolts suitable for pipe clamps?

Yes. U bolts are commonly used as pipe clamp fasteners for round pipes, tubes, conduits, and support brackets.

Q8: What is the difference between 304 and 316 stainless steel U bolts?

304 stainless steel is suitable for general corrosion-resistant use. 316 stainless steel has better resistance to saltwater, marine environments, and chemical corrosion.

Q9: How do I choose the correct U bolt size?

You should confirm the pipe outside diameter, required inside width, total height, thread size, thread length, and installation thickness.

Q10: Can you produce according to drawings or samples?

Yes. Custom production is available according to customer drawings, samples, or detailed specifications.


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International Standard Certification

Complies with major global standards such as ISO/DIN/GB/ANSI/JIS

Full range of products covered

Standard parts + customized parts, one-stop solution for all your fastening needs

High-precision manufacturing process

Tolerance control far exceeds industry standards, ranging from 4.8 to 12.9 grades.

1-on-1 Customization Service

Customization based on provided drawings/samples/working conditions; rapid prototyping and mass production delivery.

What Our Customers Say

Trusted by global manufacturers for fastener solutions

BrightBuild Hardware Ltd.
BrightBuild Hardware Ltd.
United Kingdom
XZ FASTENER has been a reliable supplier for our construction fastener orders. The bolts and nuts arrived with good surface finish, accurate sizes, and strong packaging. Communication was clear from quotation to shipment.
Andina Industrial Supply S.A.
Andina Industrial Supply S.A.
Colombia
We ordered different sizes of hex bolts, washers, and nuts. XZ FASTENER helped us confirm the specifications and provided a practical shipping solution. The quality was stable and suitable for our local market.
Falcon Engineering Supplies
Falcon Engineering Supplies
United Arab Emirates
XZ FASTENER understands export business very well. They prepared the quotation, packing details, and documents professionally. The products matched our requirements and the delivery was well organized.
Pacific Bolt & Nut Trading
Pacific Bolt & Nut Trading
Philippines
We appreciate their fast response and flexible support. Even though our order included mixed sizes and different surface treatments, XZ FASTENER handled everything carefully. Good partner for wholesale fasteners.
Monterra Hardware Group
Monterra Hardware Group
Mexico
The galvanized fasteners we received were clean, well packed, and consistent in thread quality. XZ FASTENER gave us clear product photos before shipment, which helped us feel confident about the order.
Eastern Mechanical Parts Co.
Eastern Mechanical Parts Co.
Saudi Arabia
We purchased high-strength bolts and nuts for machinery maintenance. The products were strong, accurate, and packed in export cartons. XZ FASTENER is a serious factory supplier.
GlobalFix Distributors
GlobalFix Distributors
South Africa
XZ FASTENER provides competitive pricing without ignoring quality. Their team helped us compare materials, grades, and surface treatments before confirming the order. This saved us time and reduced purchasing risk.
Nova Tools & Fasteners
Nova Tools & Fasteners
Chile
Our customers care about stable quality and good appearance. The fasteners from XZ FASTENER met our expectations. The cartons, labels, and product sorting were also handled professionally.
Delta Construction Supply
Delta Construction Supply
Kenya
We needed fasteners for construction use in several sizes. XZ FASTENER responded quickly and gave practical advice on packing and shipment. The goods arrived in good condition.
Atlas Industrial Trading
Atlas Industrial Trading
Turkey
The product quality was consistent across different batches. Threads were clean, dimensions were accurate, and the surface treatment looked good. We are satisfied with XZ FASTENER’s factory support.
RedRock Hardware Importers
RedRock Hardware Importers
Australia
XZ FASTENER helped us source both standard and customized fasteners. Their team checked drawings carefully and confirmed details before production. This is very important for B2B buyers like us.
PrimeFix
PrimeFix
Canada
We like working with suppliers who communicate clearly. XZ FASTENER gave us photos, weight information, packing details, and shipping suggestions. The whole process was smooth.

Customer Visits & Certificates

Globally Compliant Standards

All XZ products comply with major global industrial standards and are adaptable to the specifications of different countries and regions.

ISO

International Organization for Standardization (ISO) standards

DIN

German Industrial Standards

GB

Chinese National Standards

ANSI

American National Standards

JIS

Japanese Industrial Standards

Application Areas

Mechanical equipment
manufacturing

Automobiles &
New Energy

Rail transit

Aerospace

Petrochemical

Shipbuilding &
Ocean

New energy photovoltaic /
wind power

Electronics &
Electrical

High-end buildings

Special industrial
equipment

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