U Bolts

Custom U Bolts Manufacturer

Heatfastener

U Bolts Manufacturer

We are the leading U bolts manufacturer and supplier, factory in China, The with a range of our products can be divided into auto fasteners, mechanical fasteners, construction fasteners, power fasteners, railway fasteners, household electrical appliances fastener, and chemical fasteners, Product standards including DIN, ISO, GB, and ASME/ANSI, BS, JIS, AS. Main levels of carbon steel:4.8,6.8, 8.8, 10.9, and 12.9 grade, The main material of stainless steel, SS201, SS304, SS316, Titanium, Brass, Aluminum, carbon steel and various kind of our materials

Heatfastener offers fully customized custom bolts and screws according to your needs. We can bring your fastener design to reality, and everything according to your requirements.

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automotive screw

U Bolts Details

 U-bolts are bolts that are shaped in the letter U. with machine threads for use with a nut on both ends. They can come either round (curved at the bottom) or square bent (where there is a flat part at the bottom with two legs on both ends.) They are usually threaded on each end of the shaft and can come with plates, washers, and nuts. U-bolts are typically used in building and construction applications. 

Heatfastener uses a wide variety of materials to suit any fastener application. A few that we provide include:

  • Stainless steel – SS302, SS304, SS316, (good tenacity)
  • Steel – C45(K1045), C46(K1046),C20
  • Brass – C36000 ( C26800), C37700 ( HPb59), C38500( HPb58),C27200CuZn37), C28000(CuZn40)
  • Bronze–C51000, C52100, C54400, etc
  • Aluminum – Al6061, Al6063 etc
  • Carbon steel – C1006,C1010,C1018,C1022,C1035K,C1045
  • Alloy steel – SCM435,C10B21,C10B339
  • Other material– Titanium, UNS C11000 Copper,silicon

Specification

  • Grade: Grade 4.8,Grade 6.8,Grade 8.8,Grade10.9,Grade12.9 etc
  • Standard:GB,DIN,ISO, ANSI/ASTM,BS,BSW,JIS, Metric, Inch
  • Finish:Plain, H.D.G, Black oxide, Chrome, Teflon,dacromet etc
  • Certificates: ISO9001:2015, ISO14001:2015,IATF16949, ROHS
  • Non standards:OEM is available,according to customer requirments

Features

  • The surface of products are smoothy and without any burr,precise technology, accordance with the requirments of customers.
  • Provide OEM & ODM service, print your logo or brand on products and make your customized packaging.
  • Corrosion resistance,anti-rub-bing,high hardness,anti-rust,high tensile strength and an-ti-oxygen
  • Producing completely according to the accuracy of drawings,assembly meansurement to detect function and strict quality control to ensure 0 return rate.

Application

U bolts have primarily been used to support pipework, pipe through which fluids and gasses pass, As such, U bolts were measured using Pipes work engineering speak, which is described by the size of pipe it was supporting U bolts are also sued to hold ropes together

U shape is generally used in trucks, it is used to stabilize the car chassis and frame. For example, leaf springs are connected by U bolts

U-bolt measurements are diameter x inside length x width between legs.

To install: hook the U-bolt around a square post, adjust the plate to the desired position, and secure tightly in place with a hex nut on each leg.

carriage bolt application
  • Round Bend U-bolts:We carry them in a variety of lengths and pipe sizes. We also can supply the U-bolt plates and corresponding nuts if needed. Our line also includes long tangent U-bolts, which are the same as round bend U-bolts, but with longer legs and more threading
  • Square bend U-bolts:Our square bend off-the-shelf U-bolts come in 3/8” diameter or custom made as your drawing. We supply them nuts and washers.
  • Specials:We also have the capability to supply made-to-order U-bolts in both round and square bend. We can make it per your thread pitch, thread length, inside diameter, and overall length. Our special U-bolts can be made out of -steel (grade 2, 5, and 8), stainless steel (18-8 and 316 stainless), and brass. We can also supply metric threading. 

We manufacturer any diameter U bolts as customer requirements, M4, M6, M8, M10, M14, M16, M20, and more, below are one of what we made

Square Bend U Bolt size chart

Diameter x Width X Length Material Finish
5/16-18 x 2 x 3Carbon SteelZinc Plated
5/16-18 x 2 x 5Carbon SteelZinc Plated
5/16-18 x 2 x 7Carbon SteelZinc Plated
3/8-16 x 3 x 4Carbon SteelZinc Plated
3/8-16 x 3 x 6Carbon SteelZinc Plated
3/8-16 x 3 x 7Carbon SteelZinc Plated
3/8-16 x 4 x 3Carbon SteelZinc Plated
3/8-16 x 4 x 5Carbon SteelZinc Plated
3/8-16 x 4 x 6Carbon SteelZinc Plated
3/8-16 x 4 x 7Carbon SteelZinc Plated

Round Bend U bolts size chart

Diameter x Width X Length Material Finish
1/4-20 x 9/16 x 1-3/8Carbon SteelZinc Plated
1/4-20 x 3/4 x 1-1/4Carbon SteelZinc Plated
1/4-20 x 3/4 x 1-3/4Carbon SteelZinc Plated
1/4-20 x 3/4 x 2-3/4Carbon SteelZinc Plated
1/4-20 x 1 x 1-3/4Carbon SteelZinc Plated
1/4-20 x 1 x 2-3/4Carbon SteelZinc Plated
1/4-20 x 1-1/8 x 2-1/4Carbon SteelZinc Plated
1/4-20 x 1-1/8 x 3-1/2Carbon SteelZinc Plated
1/4-20 x 1-3/8 x 2-3/4Carbon SteelZinc Plated
1/4-20 x 1-3/4 x 2-3/4Carbon SteelZinc Plated
1/4-20 x 2 x 3-1/2Carbon SteelZinc Plated
5/16-18 x 1 x 2-3/16Carbon SteelZinc Plated
5/16-18 x 1-1/8 x 2-3/16Carbon SteelZinc Plated
5/16-18 x 1-3/8 x 2-1/2Carbon SteelZinc Plated
5/16-18 x 1-3/8 x 3-3/4Carbon SteelZinc Plated
5/16-18 x 1-3/4 x 3Carbon SteelZinc Plated
5/16-18 x 1-3/4 x 4-1/4Carbon SteelZinc Plated
5/16-18 x 2 x 3-1/4Carbon SteelZinc Plated
5/16-18 x 2 x 3-11/16Carbon SteelZinc Plated
5/16-18 x 2 x 4-11/16Carbon SteelZinc Plated
5/16-18 x 2-1/2 x 3-1/2Carbon SteelZinc Plated
5/16-18 x 2-1/2 x 4-3/16Carbon SteelZinc Plated
5/16-18 x 2-1/2 x 5-3/16Carbon SteelZinc Plated
5/16-18 x 3 x 3-11/16Carbon SteelZinc Plated
3/8-16 x 1- x 2-1/4Carbon SteelZinc Plated
3/8-16 x 1-1/4 x 2-1/4 Carbon SteelZinc Plated
3/8-16 x 2 x 3-1/8Carbon SteelZinc Plated
3/8-16 x 2-1/2 x 3-5/8Carbon SteelZinc Plated
3/8-16 x 3 x 4-1/8Carbon SteelZinc Plated
3/8-16 x 3 x 6-5/8Carbon SteelZinc Plated
3/8-16 x 3-1/2 x 4-5/8Carbon SteelZinc Plated
3/8-16 x 3-1/2 x 6-1/2Carbon SteelZinc Plated
1/2-13 x 3 x 5Carbon SteelZinc Plated
1/2-13 x 3-1/2 x 5-1/2Carbon SteelZinc Plated
1/2-13 x 3-1/2 x 8-1/2Carbon SteelZinc Plated
1/2-13 x 4 x 6 Carbon SteelZinc Plated
1/2-13 x 4-1/2 x 6-1/2Carbon SteelZinc Plated

Need Custom Eyebolts for Your Industry?

As a 20-year industry experience manufacturer with a factory equipped with precision machines, we can provide, from consultation to production, a one-stop solution for you.

About Us

Shenzhen Heat Hardware Co., Ltd is a leading custom screw manufacturer in China founded in 2000 years. We are specializing in custom screws, security screws, Sems screws, Chicago Screws, Weld Screws, Long screws, Micro Screws, Thumb Screws, Set Screws, Custom bolts, carriage bolts, nuts, and other custom Fasteners. With more than 20years of industry experience. We have serviced over 20000customers including the aerospace industry, automotive industry, electronics, mechanical and electrical products, robots, the Medical industry, communications industry, Outdoor sports products, smart appliances, etc. we can provide one-stop fastener customized service for you no matter what kind of custom fastener you need.

Frequently Asked Questions

A U-bolt is an industrial fastener in the shape of the letter U with two threaded arms (or legs) extending from a curved base. U bolts are typically used to support pipework or to attach a part to a pole, beam, or wall, where the “u” shape keeps it firmly in place, adding stability to the support.

A U-bolt is a bolt in the shape of the letter U with screw threads on both ends. U-bolts have primarily been used to support pipework, pipes through which fluids and gasses pass. … A U-bolt would be described by the size of pipe it was supporting. U-bolts are also used to hold ropes together.

Regardless of the bend type, all U-bolts are measured in the same manner as shown here. … Forged top U-bolts are best ordered by application and leg length since the type of forging is usually unique to the particular application and must be maintained to provide proper fit and clearance.

U-bolts are common bolts that are used for building construction and/or vehicle suspension like leaf springs. Considered one of the major parts of your leaf spring installation, u-bolts will provide a permanent tie between the spring leaves and your axle.

The first step in understanding when to use U bolts is becoming familiar with them. The bolt may be made from galvanized steel, bright zinc plated steel, or stainless steel. These fasteners are shaped like the letter U, with a pair of threaded arms that extend from the rounded base.

What are the types of u bolts? U bolts are commonly classified by bending shape and can be divided into round U bolts, semi-round U bolts, and square U bolts. Each of the three models can be made of corrosion-resistant metals, such as carbon steel, 304 stainless steel, or 316 stainless steel.

Multiply the product of the tensile strength and the cross-sectional area by 0.56, a coefficient that differentiates shear capacity from tensile capacity. In our example, multiplying 314.16 pounds by 0.56 gives 175.93 pounds. This number is the tensile capacity of the U-bolt

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