Premium A4-80 & A2-70 Stainless Steel Hex Bolts for Demanding Industrial Applications
Engineered for superior performance in corrosive and high-strength environments, our stainless steel hex bolts represent the pinnacle of fastener reliability. Designed to meet international standards, these bolts offer an exceptional combination of tensile strength, corrosion resistance, and durability, making them an indispensable component for OEMs, MRO operations, and construction projects worldwide. This product line is tailored for professionals who prioritize longevity and structural integrity in their assemblies.
Product Overview
Our stainless steel hex bolt range is manufactured from high-grade A2-70 (304) and A4-80 (316) stainless steel, providing a robust solution for applications where exposure to moisture, chemicals, or extreme temperatures is a concern. The classic hex head design allows for high-torque installation with standard tools, ensuring secure and stable connections. Available in a comprehensive array of diameters, lengths, and thread pitches, these bolts are versatile enough to meet the precise specifications of diverse industrial sectors, from marine engineering to food processing.
Key Features
- Exceptional Corrosion Resistance: Made from A2-70 or A4-80 stainless steel, offering excellent protection against rust and corrosion in harsh environments.
- High Tensile Strength: Rated for high mechanical loads, ensuring a secure and reliable hold that maintains integrity under stress.
- Wide Temperature Tolerance: Performs reliably across a broad temperature range, suitable for both high-heat and cryogenic applications.
- Standardized Dimensions: Manufactured to DIN, ISO, and ANSI standards, ensuring compatibility and interchangeability with global specifications.
- Versatile Finishes: Available in natural mill finish or electropolished for enhanced cleanability and aesthetic appeal where required.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material Grade | A2-70 (304), A4-80 (316) Stainless Steel |
| Standards | DIN 933, DIN 931, ISO 4014, ISO 4017, ASME B18.2.1 |
| Diameter Range (M) | M3 to M24 (Custom sizes available) |
| Length Range | 6mm to 200mm (Custom lengths available) |
| Thread Pitch | Standard coarse thread (e.g., M10x1.5) and fine thread options |
| Tensile Strength | A2-70: 700 MPa min / A4-80: 800 MPa min |
| Proof Load | A2-70: 450 MPa / A4-80: 600 MPa |
| Finish | Natural (Mill Finish), Electropolished |
Application Scenarios
The inherent properties of a high-quality stainless steel hex bolt make it suitable for a vast range of critical applications. In the marine and offshore industry, they are essential for securing structures exposed to saltwater. Food and beverage processing plants utilize them for equipment assembly due to their ease of cleaning and resistance to sanitizing chemicals. In architectural and construction projects, they provide durable, weather-resistant fastening for facades and structural elements. Furthermore, they are vital in chemical processing, water treatment facilities, and pharmaceutical manufacturing, where material purity and corrosion resistance are non-negotiable.
Advantages
- Long-Term Cost Efficiency: Reduced replacement frequency and maintenance costs due to superior corrosion resistance and durability.
- Enhanced Safety: High tensile and proof load ratings contribute to the overall safety and reliability of the assembled structure.
- Global Compliance: Manufactured to internationally recognized standards, facilitating seamless use in export products and multinational projects.
- Minimal Contamination: Stainless steel is non-porous and does not leach materials, making it ideal for hygienic and sensitive environments.
Why Choose Us
As a specialist manufacturer and global supplier, we distinguish ourselves through an unwavering commitment to quality and customer-centric service. Our stainless steel hex bolts undergo rigorous in-house testing for mechanical properties and material composition to ensure every batch meets our stringent standards. We offer flexible bulk packaging, reliable logistics solutions, and competitive MOQs tailored for B2B procurement. Our technical support team is available to assist with material selection and specification to ensure your project's success. Partner with us for a reliable supply chain of premium fasteners you can trust.
FAQ
What is the difference between A2-70 and A4-80 stainless steel hex bolts?
A2-70 (304 stainless steel) offers good general corrosion resistance and is cost-effective for most environments. A4-80 (316 stainless steel) contains molybdenum, providing significantly higher resistance to chlorides and acids, making it the choice for marine and highly corrosive chemical applications.
Are your bolts compliant with RoHS and REACH regulations?
Yes. Our stainless steel fasteners are manufactured from compliant materials and are suitable for use in products and projects requiring adherence to EU RoHS and REACH directives.
Can you provide custom-sized or non-standard stainless steel hex bolts?
Absolutely. We specialize in custom manufacturing. We can produce bolts to specific diameters, lengths, thread types, and head markings based on your technical drawings or samples.
What packaging options are available for bulk orders?
We offer a variety of packaging solutions including bulk boxes, master cartons, or customized palletizing to ensure safe transit and easy handling at your facility. All packaging can be labeled to your specifications.
Do you provide certificates for your products?
Yes. We provide Material Test Certificates (MTC/C of C) upon request, which detail the chemical composition and mechanical properties of the supplied batch, ensuring traceability and quality assurance.
