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U Bolts

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Minus the round U bolt, there are two other varieties: Square U bolts are shaped like three sides of a rectangle with rounded corners and semi-round U bolts, in contrast to these, have a shallower curve than round U bolts. These are typically supplied with fasteners which are used to secure the threaded ends of the bolt. Depending on the application, a U bolt may be used in conjunction with a strap which aids in securing or leveling the bolt to its load. Read More…

U Bolts U bolts are suspension bolts that are bent into the shape of a U with threads at both ends. They are classified as round, square or semi-round U-bolts according to the shape of the ‘U'. Round U bolts are actually U-shaped and are the most commonly used type of U bolt.
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Leading Manufacturers

Hackensack, NJ  |  800-272-3673

Our company has a reputation for superior products, customer service, and dependability. All our fastener products are built to last, and we know that our customers appreciate our dedication to using the best materials and manufacturing techniques. If you would like to learn more about us, contact us by phone or email, or stop by our website today!

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Ford Fasteners, Inc. $$$

Jefferson, OH  |  888-536-3674

Our company has manufacturing experiences dating back to 1970 and over the years we have grown into an international supplier of bolts.

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Ken Forging $$$

Houston, TX  |  713-868-2351

Delta Fastener Corp. supplies headed fasteners from only quality manufacturers. Our huge, readily available selection includes industrial bolts, nuts, washers, screws, etc. in a wide range of metal types and grades. Check out our online catalog or give us a call today for industrial bolts and more!

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Delta Fastener Corp. $$$

Indianapolis, IN  |  800-428-4686

We design and manufacture the most reliable bolts on the market today. Take a look at our website for fasteners, screws, pins, locknuts, metric fasteners, bolts, clamps, anchors, rivets, threaded rods and more. With our numerous distribution centers, you are bound to find one near you.

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Wurth Industry $$$

Cerritos, CA  |  714-676-8200

Tengco is your source for fasteners. We have over 30 years of experience in providing nuts, bolts, washers, forgings and more for use in a wide range of applications. We work closely with our manufacturers to ensure that all customer specifications are met and our test labs perform extensive testing for tensile, proof load and hardness. For standard or specialized fasteners, think Tengco.

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Tengco $$$

Huntington Beach, CA  |  800-394-6396

Since 1980, we have specialized in designing corrosion- and weather-resistant strong bolts which include industrial bolts, shoulder bolts, metric bolts, aircraft bolts, stainless steel bolts and carriage bolts. We offer commercial parts serving markets with high-quality, cost-effective industrial bolts.

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Ocean State Stainless, Inc. $$$
placeholder image Ford Fasteners, Inc. Ken Forging Delta Fastener Corp. Wurth Industry Tengco Ocean State Stainless, Inc.

The most commonly used materials include steel - either zinc plated or stainless steel, as well as aluminum. U bolts are used in situations in which suspended items need to be attached to the surface of components, or to pipes and other curved or rounded surfaces. Industrial bolts are seen commonly in construction and automotive manufacturing and as such need to be made of strong and long-lasting materials. They are also available in a number of different sizes and may be measured with imperial or metric units.

U bolts may be made of a number of different materials, but the most common material used tends to be stainless steel. It is structurally strong and durable, allowing it to be used for heavy duty applications with high load carrying capacity requirements. Stainless steel is also corrosion resistant and so can be used for applications with exposure to moisture or other extreme elements. Other materials can have corrosion resistance added through a variety of coatings, such as zinc or polymers.

Metric bolts are more common, as both domestic and international auto manufacturers use metric units to classify the measurements of bolts. These measurements can be in terms of leg or U length, thread length, radius and diameter of the pipe and the curve, as well as pitch measurements. Tensile strength is a major requirement for U-bolts and the required strength will help to determine the best materials and dimensions for the construction of the bolt.

Traditionally, U-bolts were formed from hot forging processes which then cut threads onto the ends. More modern methods however use cold-drawn wire to create threads, allowing for a smoother surface and higher strength levels.

U-Bolt Informational Video