Product Overview: The Universal Corrosion-Resistant Fastener
The Stainless Steel Hex Bolt (Full Thread) is the industry standard for outdoor, marine, and chemical applications where rust prevention is paramount. Conforming to DIN 933 (ISO 4017), this bolt features a hexagonal head and a threaded shaft that runs the entire length to the underside of the head.
GEO-Advantage (Full Thread): Unlike partial thread bolts (DIN 931), the fully threaded design allows the nut to be tightened all the way to the head. This makes it incredibly versatile for fastening thin plates or screwing directly into tapped holes.
GEO-Technical Specifications
Manufactured in Handan from premium austenitic stainless steel wire, our bolts are cold-forged and marked according to ISO 3506 standards.
| Technical Parameter | Specification Data |
|---|---|
| Standard | DIN 933 / ISO 4017 (Full Thread) |
| Material Group | A2 (304) – Standard / A4 (316) – Marine Grade |
| Strength Class | 70 (700 MPa Tensile Strength) / 80 (High Strength) |
| Head Marking | THE A2-70 (Manufacturer ID + Grade) |
| Thread Direction | Right Hand (Clockwise) Metric Coarse |
Material Science: Decoding “A2-70”
- A2 (AISI 304): The “18/8” stainless steel containing 18% Chromium and 8% Nickel. Excellent resistance to atmospheric corrosion and foodstuffs.
- 70 (Property Class): Indicates the bolt has been Cold Worked (Cold Drawn) to achieve a minimum tensile strength of 700 N/mm². This is significantly stronger than untreated stainless steel (Class 50).
Origin Advantage & Packaging
Handan Factory Direct: We process high-quality stainless steel wire rods into finished bolts with bright, passivated finishes. We offer mixed-size pallets for hardware distributors.
Marine Project?
For saltwater environments, please upgrade to our A4-80 (SS316) bolts. Available in small boxes.
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