Copper/Steel Open-End Dome Head Blind Rivets

Copper/Steel Open-End Dome Head Blind Rivets

Product Overview

JUXIN FASTENERS supplies copper-body, steel-mandrel open-end blind rivets with a standard dome head for industrial fastening applications.

These break-mandrel rivets are installed from one side of the assembly. 

During installation, the mandrel pulls through the rivet body, causing the copper body to deform and form a retaining head on the blind side.

The copper/steel construction offers a distinct material combination for applications where copper body characteristics, 

component appearance or compatibility with specified mating materials are important.

Material and Construction

The exact copper grade, steel grade and mandrel coating must be confirmed from the applicable JUXIN technical documentation.

Product Features

• Copper rivet body with steel pull mandrel

• Standard dome head for a visible, protruding fastener head

• Open-end design for one-sided installation

• Mechanical fastening without rear-side tool access

• Suitable for compatible copper and other metal assemblies

• Customer-specific dimensions subject to technical review

• Drawing-based OEM sourcing and bulk purchasing inquiries

Dimensions and Technical Specifications

Detailed dimensions and drawings: Refer to the existing product PDF/CAD documentation, pages 93–94.

The approved product drawing and dimensional table govern the actual available specifications.

Copper Body and Steel Mandrel — Engineering Considerations

The copper rivet body and steel mandrel perform different functions during installation.

The copper body forms the visible head and the blind-side retaining portion of the installed rivet.

The steel mandrel is used to set the rivet by pulling and deforming the body.

Copper is an electrically conductive and generally nonmagnetic material. 

However, these properties apply to the copper body and must not be interpreted as guaranteed characteristics of the complete copper/steel rivet.

The steel mandrel may be magnetic, depending on its material specification.

For applications involving electrical conductivity, the complete joint design, contact resistance, mandrel retention and service environment must be evaluated.

Dome Head Design

The dome head, also called a protruding head, remains visible above the accessible panel surface after installation.

The head provides a bearing surface against the joined material.

The correct head diameter, mounting-hole size and panel thickness must be considered to achieve the intended installed condition.

For applications requiring a flush surface, a countersunk blind rivet is a different product configuration and should be selected only after confirming joint compatibility.

Grip Range and Material Thickness

Grip range is the combined thickness of the materials that a selected blind rivet is designed to fasten.

The rivet must be selected according to the actual material stack-up.

Important factors include:

• Rivet body diameter

• Rivet body length

• Combined material thickness

• Recommended mounting-hole diameter

• Panel material and stiffness

• Blind-side clearance

• Required joint performance

The rivet body length is not equivalent to the grip range.

An unsuitable grip range may prevent correct blind-side deformation or produce an unreliable joint.

Mounting-Hole Requirements

The mounting hole must match the selected rivet specification.

Hole diameter, alignment, edge distance and surrounding material condition can affect the finished joint.

Oversized or damaged holes may reduce the bearing support available to the rivet.

For thin copper sheet or other relatively soft materials, local deformation around the hole should be considered during joint design.

Metric and Inch Size Reference

The following are general nominal blind rivet diameter references:

These values are general dimensional references and do not confirm the size range available for this specific copper/steel product.

Metric and inch-designated blind rivets must be checked against actual dimensions, tolerances, grip ranges and hole requirements before substitution.

Installation Method

Copper/steel open-end blind rivets are installed using a compatible blind riveting tool and nosepiece.

A typical installation sequence is:

1. Prepare the specified mounting holes.

2. Align the materials to be joined.

3. Insert the copper blind rivet through the aligned holes.

4. Engage the steel mandrel with the installation tool.

5. Pull the mandrel to deform the copper body on the blind side.

6. Complete the setting operation when the mandrel breaks at its designed break point.

The installation tool must be compatible with the rivet diameter and mandrel specification.

The rivet should be evaluated for proper seating, blind-side formation and installed condition according to the approved application requirements.

Electrical Conductivity and Contact Design

Copper is widely used in electrical applications because of its conductive properties.

However, a copper-body blind rivet is primarily a mechanical fastener unless the complete joint has been specifically designed and verified for electrical current transfer.

Electrical suitability depends on the copper grade, contact surfaces, mating materials, retained mandrel condition, installation quality and service environment.

A copper/steel blind rivet should not be described as a rated electrical connector without supporting product and assembly-level validation.

Corrosion and Material Compatibility

Copper and steel have different electrochemical characteristics.

When dissimilar metals are combined in the presence of an electrolyte, galvanic corrosion may occur under suitable conditions.

Corrosion behavior depends on the actual materials, coatings, contact area, moisture exposure and surrounding environment.

For outdoor, marine or high-humidity applications, the material combination and protection requirements should be evaluated against the specified service conditions.

No universal corrosion-resistance rating or salt spray performance is claimed without verified data.

Mechanical Performance and Joint Design

Shear strength and tensile strength describe different loading conditions.

Shear strength concerns loading across the rivet, while tensile strength concerns loading that tends to separate the joined materials along the rivet axis.

Actual performance depends on the copper body grade, rivet geometry, steel mandrel configuration and product design.

The finished joint is also affected by:

• Hole diameter and tolerance

• Grip range

• Rivet spacing

• Edge distance

• Mating material properties

• Installation quality

• Loading direction and service conditions

No mechanical strength value should be assumed from material appearance alone.

Typical Industrial Applications

Copper/steel dome head blind rivets may be considered for compatible applications such as:

• Copper sheet-metal assemblies

• Metal fabrication and equipment panels

• Architectural and decorative metal components

• Industrial enclosures and covers

• Compatible copper or mixed-metal assemblies

• General OEM mechanical fastening projects

Application suitability must be confirmed against the required material compatibility, mechanical performance and environmental conditions.

International Standards and Technical References

International blind rivet standards distinguish fasteners by body material, mandrel material, head style and rivet construction.

Copper/steel open-end blind rivets must not automatically be assigned standards intended for aluminum/steel, steel/steel or stainless steel configurations.

Where ISO, EN, DIN or other technical standards are specified by the customer, the applicable standard, edition and product scope should be verified against the actual copper/steel configuration.

The approved JUXIN drawing and agreed customer specifications remain the controlling technical references until standard conformity is confirmed.

Inspection and Quality Requirements

Relevant inspection characteristics may include:

• Copper body diameter and length

• Dome head dimensions

• Steel mandrel dimensions

• Copper and steel material identification

• Mandrel surface condition

• Recommended mounting-hole diameter

• Grip range

• Installed head formation

• Shear and tensile performance where specified

• Surface appearance and packaging

The required inspection scope and acceptance criteria depend on the approved drawing and customer specification.

OEM Customization and Bulk Supply

JUXIN FASTENERS accepts drawing-based OEM inquiries for copper/steel blind rivets.

Customer-specific requirements may include rivet diameter, body length, head dimensions, material grades, mandrel finish, grip range, inspection criteria and packaging.

Technical feasibility and commercial conditions are reviewed according to the required specifications and purchasing quantities.

Frequently Asked Questions

What is a copper/steel blind rivet?

It is a blind rivet with a copper body and steel pull mandrel, designed for one-sided mechanical fastening.

What is the difference between copper/steel and steel/steel blind rivets?

The rivet body material differs. Copper and steel have different mechanical, electrical and environmental characteristics, so the configurations should not be substituted without technical verification.

Can copper blind rivets be installed from one side?

Yes. Open-end blind rivets are designed for installation using a compatible tool from the accessible side of the joint.

Are copper blind rivets electrically conductive?

The copper body is conductive, but the electrical performance of the complete installed joint must be verified for the intended application.

Are copper/steel blind rivets suitable for outdoor use?

Suitability depends on the actual material grades, mandrel finish, mating materials and environmental exposure.

What is the correct grip range?

Grip range depends on the selected rivet dimensions and must be confirmed from the applicable product specification.

Can JUXIN supply custom copper blind rivets?

Customer-specific drawings and technical requirements can be submitted for review and quotation.

Request an OEM Copper Blind Rivet Quotation

JUXIN FASTENERS supplies industrial blind rivets for OEM manufacturing and bulk purchasing projects.

Please provide the required rivet body diameter, length, grip range, mounting-hole diameter, copper and steel material specifications, 

surface finish requirements, 2D/3D engineering drawings, expected purchasing quantity and any applicable quality requirements.

Email: info@juxinfasteners.com

Website: https://www.juxinfasteners.com/

JUXIN FASTENERS — Industrial Blind Rivets and Custom Fastening Solutions for Global OEM Applications.

Packaging Standard

At Juxin Fasteners, we apply standardized export packaging to ensure product protection, traceability, and compliance with international logistics requirements.

1. Standard Export Packaging

Unless otherwise specified, all products will be packed according to our factory standard export packaging, which includes:

Moisture-resistant inner protection

Poly bag or small box packing as required

Reinforced export cartons

Clear labeling with part number, specification, batch number, and quantity

Palletizing for sea or air shipment when necessary

Our standard packaging is designed to ensure safe transportation, efficient warehousing, and long-distance international shipping.

2. Customized Packaging Options

We also provide customized packaging solutions according to customer requirements, including but not limited to:

Private labeling

Customized barcodes

Specific carton dimensions

Retail packaging

Special pallet configuration

Customer-specific marking and identification

So that you know, customized packaging may involve additional costs and extended lead time depending on the complexity of the requirements.

3. Compliance & Quality Assurance

All packaging processes are controlled under our ISO 9001 quality management system to ensure consistency, traceability, and product integrity throughout the supply chain.