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Product Introduction

AISI 302HQ Stainless Steel Cold Heading Wire for Precision Fasteners

AISI 302HQ stainless steel cold heading wire is developed for manufacturers producing precision fasteners through cold heading and cold forging processes. It is commonly used for components such as bolts, nuts, screws, rivets and other formed metal parts.

302HQ is a copper-containing austenitic stainless steel grade widely selected for cold heading applications. Compared with conventional stainless steel grades, its composition is designed to support cold forming processes where material flow, surface condition and work-hardening behavior are important considerations.

TOPONE supplies 302HQ stainless steel cold heading wire with controlled production processes and can provide customized specifications according to diameter requirements, surface condition, standards and fastener manufacturing processes.

Product Specifications

Material Characteristics

302HQ Stainless Steel for Cold Heading Applications

302HQ stainless steel is commonly selected for cold heading applications because fastener production requires suitable material flow during forming operations.

Typical factors considered during material selection include:

• Wire diameter and tolerance
• Cold heading process design
• Number of forming stages
• Surface lubrication condition
• Finished component requirements

For small precision fasteners, 302HQ wire can provide a suitable balance between corrosion resistance and cold forming requirements.

Surface Options

Bright Surface Stainless Steel Wire

Bright surface provides a clean metallic appearance and is suitable for applications where surface quality is important.

Common applications:

• Visible stainless steel fasteners
• Precision screws
• Small formed components

Soap Coated Surface

Soap coating can be selected according to cold heading equipment and lubrication requirements.

It is commonly considered for:

• Multi-stage cold forming
• High-speed forming processes
• Applications requiring improved die contact conditions

Applications

Stainless Steel Bolt and Nut Manufacturing

302HQ stainless steel cold heading wire is widely used as raw material for:

• Stainless steel bolts
• Nuts
• Screws
• Self-tapping screws
• Rivets
• Small precision fasteners

Precision Cold Formed Components

Suitable for industries requiring small diameter stainless steel formed parts, including:

• Automotive components
• Electrical equipment
• Industrial hardware
• General fastening applications

Product Advantages

Suitable for Precision Fastener Production

The 0.15–12mm diameter range supports different fastener designs and forming requirements. Manufacturers can select suitable wire specifications according to finished part dimensions and production processes.

Designed for Cold Forming Processes

302HQ stainless steel wire is commonly used in cold heading applications where factors such as material grade, surface condition and forming process need to be considered together.

Multiple Standards Available

The product can be supplied according to AISI, ASTM, DIN, EN, GB and JIS equivalent standards to meet different market requirements.

Customized Supply Options

Specifications can be adjusted according to:

• Diameter requirements
• Surface finish
• Mechanical requirements
• Coil or spool packaging