Stainless steel countersunk bolts are precision-engineered fasteners designed for applications requiring both corrosion resistance and flush surface finishing. These bolts ensure secure assembly while maintaining a neat, hazard-free appearance, making them ideal for structural steelwork, marine installations, and industrial machinery.
๐ฉ What Are Stainless Steel Countersunk Bolts?
Stainless steel countersunk bolts feature:
- Head Type: Flat countersunk head for flush mounting
- Drive Type: Hex socket (Allen), Torx, or Phillips drive options
- Thread Types: Metric (M3, M4, M5, M6, M8, M10, M12) or UNC/UNF
- Material Grades:
- 304 Stainless Steel: general corrosion resistance for indoor and outdoor use
- 316 Stainless Steel: superior corrosion resistance for marine and chemical environments
They conform to DIN 7991 / ISO 10642 standards, ensuring compatibility with international projects.
โ Key Specifications
- Thread Sizes: M3 โ M12 standard, custom sizes available
- Material: 304 stainless steel, 316 stainless steel
- Surface Finish: Natural stainless, polished, passivated
- Length: From 6mm up to 150mm or customized based on design requirements
โ๏ธ Applications of Stainless Countersunk Bolts
โ Marine and offshore installations โ 316 stainless steel ensures rust-free performance
โ Structural steel assemblies โ flush head prevents trip hazards and improves aesthetics
โ Food processing and medical equipment โ hygienic and corrosion-resistant fastening
โ Machinery and equipment assembly โ strong clamping with neat finish
โ Architectural metalwork and facade systems โ ensures smooth and professional appearance
๐ง Advantages of Choosing Our Stainless Steel Countersunk Bolts
โ
Excellent corrosion resistance in harsh environments
โ
Flush head design enhances safety and aesthetics
โ
Multiple drive options for secure tightening
โ
Wide size and grade range to suit various industrial applications
โ
OEM & ODM customization for dimensions, material, branding, and packaging
๐ฆ Packaging & Supply Details
- MOQ: 1,000 pcs per size
- Packaging: Bulk cartons with pallets / small boxes with labels / OEM branded packaging
- Lead Time: 7โ15 working days depending on order volume and customization
- Customization: Diameter, length, head type, material grade, coating, branding
๐ก Why Choose Our Stainless Steel Countersunk Bolts?
As a professional stainless steel countersunk bolt manufacturer and supplier, we provide:
โ Strict quality control from material sourcing to final inspection
โ Competitive factory pricing with stable supply
โ OEM & ODM services for marine hardware brands, machinery manufacturers, and fastener distributors
โ Export experience to Europe, North America, Southeast Asia, and the Middle East
๐ Learn More
Looking for 304 or 316 stainless countersunk bolts for long-lasting performance in your marine, industrial, or structural projects?
๐ Visit our product page here to view detailed specifications and place your order directly with the factory.
๐ฉ Contact Us Today
Get in touch for technical drawings, CAD support, free consultation, and factory-direct quotations to support your construction, engineering, and manufacturing projects.