Product Specification

304Cu Stainless Steel Cold Heading Wire 0.15–12mm for Precision Fastener Forming

Product Introduction

TOPONE 304Cu Stainless Steel Cold Heading Wire is designed for manufacturers producing stainless steel screws, bolts, nuts, rivets, pins and other cold-formed fasteners.

Made from SUS 304Cu stainless steel, this wire contains copper as an alloying element and is commonly used in cold heading applications where material formability is an important consideration. The 0.15–12mm diameter range supports different component sizes and production requirements.

Cold heading forms metal wire into a required shape at room temperature using dies and punches. Selecting the appropriate wire grade, diameter, mechanical properties and surface condition is essential for matching the material to the forming process.

TOPONE supplies 304Cu stainless steel cold heading wire with a bright surface finish. Wire diameter, dimensional tolerance, mechanical properties and packaging can be specified according to the customer's component design and production requirements.

Product Specifications

Specific dimensional tolerances and mechanical properties should follow the agreed product specification and applicable standard.

Key Features of 304Cu Stainless Steel Cold Heading Wire

1. 304Cu Stainless Steel for Cold Forming

SUS 304Cu is an austenitic stainless steel grade containing copper as an alloying element. It is commonly selected for stainless steel fastener manufacturing where cold-forming characteristics are important.

The suitability of 304Cu depends on the component geometry, deformation level, forming sequence and required mechanical properties. Material selection should be based on the actual production process rather than the grade designation alone.

2. 0.15–12mm Diameter Range

TOPONE offers stainless steel wire in diameters ranging from 0.15–12mm for different cold heading and wire-forming applications.

The appropriate diameter depends on the finished component dimensions, forming allowance, die design and equipment requirements. For precision fasteners, the required diameter tolerance should be specified before production.

3. Bright Surface Finish

The bright surface provides a metallic finish for applications where surface condition and appearance are important.

Surface quality can also affect subsequent processing, including forming, threading and finishing. Buyers should specify their surface requirements and any additional lubrication needs according to the production process.

4. Suitable for Fastener Manufacturing

304Cu cold heading wire can be considered for the production of screws, bolts, nuts, rivets, pins and other cold-formed components when the selected wire specification meets the application requirements.

For multi-stage cold heading or components involving substantial deformation, the wire grade and mechanical condition should be evaluated alongside the tooling design and forming sequence.

Applications of 304Cu Cold Heading Wire

Stainless Steel Screws

Used in the production of stainless steel screws through cold heading and subsequent threading operations. Wire diameter, formability and surface condition should match the screw design and manufacturing process.

Bolts and Studs

Can be considered for manufacturing bolts, studs and related fasteners where the selected material grade and mechanical properties meet the applicable requirements.

Rivets and Pins

Suitable for consideration in cold-formed rivets, pins and small metal components. Component dimensions and forming requirements should guide wire selection.

Precision Fasteners

For precision fasteners, manufacturers should evaluate wire diameter, dimensional tolerance, material condition and surface quality against the component drawing and production requirements.

How to Select 304Cu Stainless Steel Cold Heading Wire

Step 1: Confirm the Material Grade

Specify SUS 304Cu or the required equivalent designation according to the applicable material standard.

Step 2: Select the Wire Diameter

Choose the required diameter within the 0.15–12mm range based on the finished component dimensions and cold heading equipment.

Step 3: Define Mechanical Properties

Specify the required tensile strength, elongation and other mechanical properties according to the selected diameter, applicable standard and forming process.

Step 4: Check the Surface Condition

The standard surface finish for this product is bright. Confirm whether additional lubrication is required for the cold heading process and whether the surface condition meets downstream processing requirements.

Step 5: Confirm the Forming Process

When requesting a quotation, provide information about the fastener type, forming stages, component dimensions, tooling requirements and any subsequent threading or finishing operations.

This information helps establish a wire specification suited to the intended manufacturing process.

Quality Control and Technical Verification

For stainless steel cold heading wire, quality assessment should focus on measurable requirements and the agreed product specification.

Relevant inspection items may include:

• Material grade and chemical composition

• Wire diameter and dimensional tolerance

• Surface condition and visible defects

• Tensile strength and elongation

• Compliance with the specified material standard

• Coil dimensions, packaging and product identification

For precision fastener production, buyers should establish appropriate acceptance criteria and confirm the required inspection documentation before ordering.

Frequently Asked Questions

What is 304Cu stainless steel cold heading wire?

304Cu stainless steel cold heading wire is an austenitic stainless steel wire used for cold forming fasteners and other metal components, including screws, bolts, rivets and pins.

What diameter range is available?

TOPONE offers stainless steel wire in diameters ranging from 0.15–12mm. The required diameter and tolerance should be selected according to the component drawing and applicable standard.

Why is 304Cu used for cold heading?

304Cu contains copper as an alloying element and is commonly used in stainless steel fastener manufacturing where cold-forming characteristics are important. Its suitability depends on the component design and forming conditions.

What surface finish is available?

This product is specified with a bright surface finish. Surface and lubrication requirements should be confirmed according to the customer's cold heading process.

What information is needed for a quotation?

Please provide the material grade, wire diameter, dimensional tolerance, required mechanical properties, surface finish, applicable standard, order quantity and packaging requirements. A component drawing is recommended for precision cold heading applications.

Request a Specification-Based Quotation

Looking for 304Cu stainless steel cold heading wire for fastener manufacturing?

Contact TOPONE with your required diameter, technical specifications, surface finish and order quantity. Our team can help clarify the product requirements for your screw, bolt, rivet, pin and other cold-formed component applications.