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Yancheng SS304 Hex Bolt
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Name: Yancheng SS304 Hex Bolt
Standard: DIN933
Material: SS304
Size: M4
Lenght: 12 mm
Surface: Natural color
Standard: DIN933
Material: SS304
Size: M4
Lenght: 12 mm
Surface: Natural color
Quantity
The Yancheng SS304 Hex Bolt is a high-performance industrial fastener manufactured to DIN 933 standards, combining the inherent corrosion resistance of austenitic stainless steel with the manufacturing excellence found in China‘s leading fastener production hub.
Material and Manufacturing Excellence
This M4 x 12 mm hex bolt is produced from premium SS304 stainless steel with a carbon content maintained at ≤0.08%—a carefully controlled parameter that delivers an optimal balance of mechanical properties. Each 0.01% increment in carbon content elevates room-temperature tensile strength by 30–50 MPa, enabling the bolt to achieve a minimum tensile strength of 700 MPa while maintaining sufficient ductility for reliable cold-heading during production. The fully cold-forged manufacturing process ensures consistent grain flow and dimensional accuracy, critical for small-diameter fasteners where precision is paramount.
This M4 x 12 mm hex bolt is produced from premium SS304 stainless steel with a carbon content maintained at ≤0.08%—a carefully controlled parameter that delivers an optimal balance of mechanical properties. Each 0.01% increment in carbon content elevates room-temperature tensile strength by 30–50 MPa, enabling the bolt to achieve a minimum tensile strength of 700 MPa while maintaining sufficient ductility for reliable cold-heading during production. The fully cold-forged manufacturing process ensures consistent grain flow and dimensional accuracy, critical for small-diameter fasteners where precision is paramount.
Corrosion Resistance and Hygiene Compliance
The SS304 material offers robust resistance to acids, alkalis, and elevated temperatures while remaining essentially non-magnetic in the annealed condition. However, engineers should note the material‘s susceptibility to intergranular corrosion when exposed to 500–800°C during welding or improper heat treatment—carbon’s affinity for chromium can precipitate Cr₂₃C₆ carbides at grain boundaries, creating chromium-depleted zones. For applications involving welding or aggressive chloride environments, selecting 304L with C ≤0.03% is recommended.
The SS304 material offers robust resistance to acids, alkalis, and elevated temperatures while remaining essentially non-magnetic in the annealed condition. However, engineers should note the material‘s susceptibility to intergranular corrosion when exposed to 500–800°C during welding or improper heat treatment—carbon’s affinity for chromium can precipitate Cr₂₃C₆ carbides at grain boundaries, creating chromium-depleted zones. For applications involving welding or aggressive chloride environments, selecting 304L with C ≤0.03% is recommended.
The natural, as-forged surface finish is free from plating or coating, making these bolts ideal for food processing, medical devices, and marine equipment where hygiene standards and corrosion resistance are non-negotiable.
Application Scenarios
- Food Processing Equipment: Non-toxic surface, corrosion-resistant to organic acids and cleaning agents
- Medical Devices: Meets hygiene requirements, non-magnetic properties suit MRI-compatible assemblies
- Marine Hardware: Withstands saltwater exposure with minimal pitting risk
- Electronic Enclosures: M4 size ideal for securing control panels and instrument housings
- Outdoor Furniture & Construction: Reliable weather resistance eliminates rust concerns
- Food Processing Equipment: Non-toxic surface, corrosion-resistant to organic acids and cleaning agents
- Medical Devices: Meets hygiene requirements, non-magnetic properties suit MRI-compatible assemblies
- Marine Hardware: Withstands saltwater exposure with minimal pitting risk
- Electronic Enclosures: M4 size ideal for securing control panels and instrument housings
- Outdoor Furniture & Construction: Reliable weather resistance eliminates rust concerns
Yancheng‘s Fastener Industry Heritage
Yancheng, particularly the Dongtai and Sheyang regions, has evolved into a sophisticated fastener manufacturing cluster. Local enterprises like those in the Qintong and Shiyan townships leverage advanced multi-station cold-forging equipment, automated threading machines, and intelligent quality monitoring systems to produce components that meet international standards. The region‘s integrated supply chain—from raw material processing to surface finishing—enables rapid prototyping and volume customization, with zero-delay delivery capabilities that support just-in-time manufacturing requirements. Yancheng‘s fastener producers supply critical components to wind power, construction machinery, and automotive sectors, demonstrating the technical depth and reliability of locally manufactured products.
Yancheng, particularly the Dongtai and Sheyang regions, has evolved into a sophisticated fastener manufacturing cluster. Local enterprises like those in the Qintong and Shiyan townships leverage advanced multi-station cold-forging equipment, automated threading machines, and intelligent quality monitoring systems to produce components that meet international standards. The region‘s integrated supply chain—from raw material processing to surface finishing—enables rapid prototyping and volume customization, with zero-delay delivery capabilities that support just-in-time manufacturing requirements. Yancheng‘s fastener producers supply critical components to wind power, construction machinery, and automotive sectors, demonstrating the technical depth and reliability of locally manufactured products.
Supply Chain Advantages
Standard sizes are maintained in stock, while volume customisation is supported through Yancheng‘s flexible manufacturing infrastructure. The combination of ISO-compliant quality systems, experienced engineering support, and proximity to major ports ensures competitive pricing and reliable delivery schedules for global customers seeking trustworthy stainless steel fasteners.
Standard sizes are maintained in stock, while volume customisation is supported through Yancheng‘s flexible manufacturing infrastructure. The combination of ISO-compliant quality systems, experienced engineering support, and proximity to major ports ensures competitive pricing and reliable delivery schedules for global customers seeking trustworthy stainless steel fasteners.
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