ASME B18.31.5 Round Bend U Bolt Carbon Steel Zinc Plated

ASME B18.31.5 Round Bend U Bolt Carbon Steel Zinc Plated is a U-shaped pipe fastener manufactured strictly in accordance with ASME B18.31.5 standard. It adopts UNC full thread design and can be assembled with supporting hex nuts to tightly clamp round pipes and tubular components. The uniform zinc plated surface forms a protective layer, bringing reliable anti-rust performance. It is widely applied in indoor pipeline support, equipment piping and steel frame fixing projects.

Core Features

- U-shaped round bend design, smooth arc fits closely with circular pipe outer diameter without stress concentration

- Standard UNC thread profile, clear and neat thread, easy to cooperate with Grade 2 hex nuts and flat washers

- Uniform zinc plated layer, stable corrosion resistance for dry indoor environment

- Multiple inch sizes in stock, flexible selection to match different pipe outer diameters for pipeline and bracket projects

About Our Production & Quality Control

We start quality control from raw material incoming inspection. Carbon steel rods will be checked for material hardness and surface defects before bending and thread rolling. Our workers strictly control bending radian, thread pitch and galvanizing process to avoid bending cracking, incomplete thread and uneven zinc coating. ASME B18.31.5 Round Bend U Bolt Carbon Steel Zinc Plated will pass full dimension inspection and torque sampling test before packing, to keep consistent and stable quality for your bulk export orders.

Common Application Scenarios

- Water pipe and gas pipe support fixing in mechanical equipment

- Solar bracket and light steel frame assembly

- Agricultural machinery, truck chassis pipeline fastening

- Electrical conduit and tubing mounting on steel structures

- Fence, handrail and pipe rack installation

Basic Product Parameters

Installation Tips for U Bolt Fastening

Select the U bolt inner diameter matching the outside diameter of your pipe. Tighten two nuts evenly on both sides in turn to prevent slipping, offset or pipe deformation. Do not apply excessive torque, which may cause thread stripping or bending deformation of the U-shape. This fastener is specially designed for round tubular products, not recommended for clamping square pipes or flat profiles. If the pipe surface is soft, you can add rubber gaskets to protect the pipe surface.

Size & Packing Information

Packaging & Shipment

We adopt standard neutral export cartons for packing. Each carton is marked clearly with product standard, size and quantity. Cartons will be stacked neatly and fixed on fumigated wooden pallets for sea shipment. Cartons are reinforced with strapping and corner guards to reduce collision damage during long-distance transit. Before shipment, we complete counting and random sampling inspection. We can provide CI, PL, CO and other documents for customs clearance. ASME B18.31.5 Round Bend U Bolt Carbon Steel Zinc Plated can be shipped together with matched nuts and flat washers as a complete set upon your request.

Why Choose Gangtong Zheli

We are a professional American standard fastener manufacturer with rich export experience for overseas engineering customers. We maintain sufficient stock of U bolts for fast delivery, supporting small trial orders and large engineering bulk orders at the same time. Our sales team tracks every order from quotation, sample confirmation, production progress to final delivery. If you have special requirements on size, coating or customized packaging, our technical team can discuss and provide feasible customized solutions. A large quantity of **ASME B18.31.5 Round Bend U Bolt Carbon Steel Zinc Plated** is ready for your inquiry at any time.

Frequently Asked Questions

Q: Can this U bolt be used outdoors?

A: The zinc plated version has limited rust resistance and is suitable for dry indoor environments. For long-term outdoor humid or rainy conditions, hot dip galvanized option is more recommended for longer service life.

Q: Is the U bolt sold with nuts?

A: It can be supplied with hex nuts and washers as a complete set, or sold separately according to your purchasing demand.

Q: What is the thread standard of this U bolt?

A: This U bolt adopts UNC thread as specified in ASME B18.31.5, which matches standard Grade 2 UNC hex nuts for smooth assembly.

Q: Can I get custom sized U bolts?

A: Custom bend sizes and lengths are available upon request. Please send us your drawing or dimension requirements for quotation.