Products

What Is a U Bolt?

A U bolt (also known as a saddle bolt) is a type of fastener bent into the shape of the letter “U,” with threads machined on both ends. This U-shaped configuration allows the bolt to wrap around cylindrical objects—such as pipes, conduits, cables, and round bars—and anchor them securely to a fixed supporting structure (wall, ceiling, floor, beam, or chassis). The threaded arms extend through a mounting plate or directly into nuts, providing clamping force that holds the object firmly in place.

Key Applications & Industries

U-bolts are versatile fasteners employed across multiple industrial sectors due to their simple yet effective clamping mechanism.

Construction & Infrastructure

• Securing piping systems, HVAC ducts, and electrical conduits to ceilings, walls, and structural beams

• Anchoring telecommunication towers, power poles, solar panel mounting systems, and streetlight poles

• Embedding in concrete foundations as anchor bolts

• For construction applications, zinc-plated, hot-dip galvanized, or A2 stainless steel U-bolts are commonly specified for corrosion resistance

Automotive & Transportation

• Fastening leaf springs to vehicle axles

• Securing exhaust systems and stabilizing chassis components

• Attaching round axles to leaf springs in trucks, trailers, and heavy-duty vehicles

• Resisting vibration and road shocks in demanding automotive environments

Oil, Gas & Marine

• Securing pipelines, cable trays, and risers on oil rigs and refineries

• Marine-grade A4 stainless steel (316) required for saltwater resistance

• Galvanized or PTFE-coated materials for harsh, corrosive oil and gas conditions

Agriculture & Irrigation

• Mounting irrigation pipes and securing machinery to trailers

• Reinforcing greenhouse structures and agricultural equipment

• Galvanized or stainless steel finishes required for wet agricultural environments

Electrical & Telecom

• Mounting electrical conduits and cable management systems

• Securing solar panel racking systems

• Fastening poles and antenna support structures

Industrial Machinery & General Fabrication

• Holding down machinery and equipment to factory floors

• Attaching signs to poles or fences

• Securing wire cables and antenna sections

Material Options

Finish Options & Corrosion Protection

• Plain: Uncoated; for indoor use or applications requiring welding/modification

• Zinc Plated: Light to moderate corrosion resistance; economical choice for general-purpose use

• Hot-Dipped Galvanized: Heavy-duty corrosion protection; ideal for outdoor, marine, and high-humidity environments

• Black Oxide: Minimal corrosion protection; provides a matte black aesthetic for indoor machinery applications

• PTFE / Xylan / Teflon Coating: Chemical resistance; for harsh industrial and oil/gas applications

Thread Types & Configurations

• UNC (Unified National Coarse) – most common for inch-sized U-bolts

• UNF (Unified National Fine) – for applications requiring finer thread pitch

• ISO Metric (M series) – standard metric coarse threads

• BSW (British Standard Whitworth) – upon request

• Custom thread lengths available based on application requirements

Quality Assurance & Compliance

All U-bolts are manufactured under strict quality control protocols, including:

• Tensile testing per ASTM / ISO standards

• Dimensional inspection using calibrated gauges

• Coating thickness verification for plated and galvanized finishes

• Material certificates available upon request (Mill Test Reports)

Why Choose Our U Bolts?

• Factory direct pricing – competitive rates for wholesale and bulk orders

• Custom manufacturing – OEM/ODM service for non-standard dimensions, materials, and finishes

• Fast lead times – 15–30 days for custom orders; stock items ready for immediate shipment

• Global export – shipped to North America, Europe, Australia, Southeast Asia, Middle East, and more

• Complete set – supplied with matching hex nuts (and washers upon request)

Packaging & Shipping

• Standard packaging: bulk packing in cartons (approx. 25 kg per carton) or as customer specified

• Palletized shipping: 36 cartons per pallet for efficient container loading

• Export-ready packaging with anti-rust treatment

• Shipping via sea, air, or express courier (DHL / FedEx / UPS)

Customization Capabilities

• Any custom inside width (I.W.) and inside height (I.H.) dimensions

• Non-standard thread sizes and lengths

• Special materials and exotic alloys

• Custom coatings and surface treatments

• Rubber or plastic sleeves for vibration dampening or surface protection

Contact Us

We are a trusted fastener manufacturer and supplier of U-bolts, serving clients across the globe. For inquiries, quotes, or technical support, please contact our sales team with your specifications (material, size, quantity, finish, and application). RFQs typically responded within 24 hours.