Editorial Technical Reference

U-Bolt

This page explains how U-Bolt is classified within Fabricated Metal Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A U-bolt is a bent rod with two parallel threaded legs and a curved or formed crown.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for U-Bolt

Definition
A U-bolt is a bent rod with two parallel threaded legs and a curved or formed crown. It is used to clamp pipe, conduit, round stock, or equipment to a support, typically with nuts and a plate or saddle. The U-bolt is a component in fabricated metal product manufacturing, and its primary function is to secure cylindrical objects to a structure. The working principle involves tightening the nuts on both threaded legs, which draws the supported item against the saddle or support structure. The load capacity depends on the geometry of the bolt, the preload applied, the support conditions, and the direction of service loads. Buyers must specify the rod diameter and thread, inside width, inside height, bend radius, crown form, material, coating, and mating plate. The material options on file are carbon steel and stainless steel. Surface finishes may include plain, zinc-plated, hot-dip galvanized, or other specified coatings. It is essential to confirm all product-specific values, such as strength and performance, against the exact product standard, drawing, approval, or test report from the manufacturer. Safety and load values cannot be inferred from appearance or nominal size; they must be verified with the legal manufacturer or supplier. The RFQ should also state quantity, packaging, inspection, and traceability requirements. This directory listing is for reference only and does not imply certification or compliance. Always verify model-specific details with the supplier before use.
Working Principle
Tightening both legs draws the supported item against the saddle or structure; load depends on geometry, preload, support and service direction. The U-bolt works by creating a clamping force when the nuts are tightened, which presses the pipe or other round object against the saddle or support. The effective load capacity is determined by the bolt's dimensions, material, and the applied torque. Proper installation requires that the U-bolt is correctly sized for the application, and that the nuts are tightened evenly to avoid uneven stress. The service direction and support conditions must be considered to ensure the bolt can withstand the expected loads. Regular inspection is necessary to detect any loosening or deformation that could compromise the clamping function.
Common Materials
carbon steel, stainless steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Applicable Standard / EvidenceRequiredExact product drawing, approval or test report requiredRFQ comparison field; confirm against the exact product standard, drawing, approval and manufacturer evidence. Confirm against the exact product standard, drawing, approval and manufacturer evidence.
Nominal Size / RangeRequiredDrawing-defined; state rod diameter, inside width and inside heightRFQ comparison field; confirm against the exact product standard, drawing, approval and manufacturer evidence. Confirm against the exact product standard, drawing, approval and manufacturer evidence.
MaterialRequiredcarbon steel, stainless steelRFQ comparison field; confirm against the exact product standard, drawing, approval and manufacturer evidence. Confirm against the exact product standard, drawing, approval and manufacturer evidence.
Strength / PerformanceRequiredUse exact drawing, material certificate and application calculationRFQ comparison field; confirm against the exact product standard, drawing, approval and manufacturer evidence. Confirm against the exact product standard, drawing, approval and manufacturer evidence.
Surface FinishRequiredplain, zinc-plated, hot-dip galvanized or specified coatingRFQ comparison field; confirm against the exact product standard, drawing, approval and manufacturer evidence. Confirm against the exact product standard, drawing, approval and manufacturer evidence.
RFQ Selection FieldsRequiredrod diameter and thread, inside width, inside height, bend radius, crown form, material, coating and mating plateRFQ comparison field; confirm against the exact product standard, drawing, approval and manufacturer evidence. Confirm against the exact product standard, drawing, approval and manufacturer evidence.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for U-Bolt.

Manufacturers of U-Bolt

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Haiyan Bolt Co., Ltd.
Jiaxing, Zhejiang, CN
Also makes: Nut, Self-Tapping Screw, Furniture Hinge and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
YHeng Hardware
Jiaxing, Zhejiang, CN
Founded 2008
Also makes: Eye Bolt, Double-End Stud, Wing Nut and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What materials are available for U-bolts?

According to the directory, the materials on file are carbon steel and stainless steel. However, the exact material grade must be confirmed with the manufacturer for your specific application.

How do I specify a U-bolt in an RFQ?

You should specify the rod diameter and thread, inside width, inside height, bend radius, crown form, material, coating, and mating plate. Also include quantity, packaging, inspection, and traceability requirements.

Can I determine the load capacity from the nominal size?

No. Load capacity and safety values must come from the selected product standard, approval, drawing, or test report. They cannot be inferred from appearance or nominal size.

What surface finishes are available?

The directory lists plain, zinc-plated, hot-dip galvanized, or specified coating. Confirm the exact finish with the supplier.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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