Topone's 304HC3 Stainless Steel Screw Machine Wire represents the pinnacle of quality for high-speed cold heading and screw manufacturing. Specifically formulated for work-hardening applications, this wire ensures exceptional performance in producing durable, precise, and corrosion-resistant fasteners. Our commitment to quality begins at the source, utilizing premium-grade billets from Qingshan Steel Group and Yongxing Special Materials -- two of China's most reputable stainless steel producers. This batch guarantees a consistent 3.5mm diameter, with our capabilities extending across a comprehensive spectrum from a fine 0.1mm to a heavy-duty 12mm.

• Superior Cold Headability: Excellent ductility and controlled hardening rate minimize cracking and tool wear during high-speed forming, ensuring high production yields.
• Exceptional Consistency: Sourced from top-tier mills (Qingshan/Yongxing), the material chemistry and physical properties are uniform across entire batches, guaranteeing reliable performance.
• Optimized Surface Finish: Bright annealed surface is clean, smooth, and scale-free, providing an ideal substrate for plating or leaving as a bright finish. It also reduces friction and die abrasion.
• Enhanced Corrosion Resistance: As a chromium-nickel austenitic stainless steel, it offers good resistance to a wide range of atmospheric and chemical environments.

• Manufacturing of screws, bolts, nuts, and washers.
• Cold forging of rivets, pins, and other custom fasteners.
• Complex cold-headed parts in automotive, aerospace, electronics, and construction industries.

This detailed table provides a clear and quick overview of the product's key metrics.

For engineering and quality control teams, this data is essential.

All Topone 304HC3 wire is manufactured under a strict quality management system. Mill Test Certificates (MTCs) certifying chemical composition and mechanical properties are provided with every shipment to ensure full traceability and compliance with international standards.

• Traceable Quality: Raw materials sourced exclusively from renowned mills.
• Precision Engineering: Tight diameter tolerances and consistent mechanical properties.
• Technical Support: Expert advice on material selection and application optimization.
• Customizable Solutions: Flexible sizing, packaging, and logistics to meet your production needs.