Grade 12.9 Black Oxide Carbon Steel Bolt M6 M8 - 1220MPa Tensile Strength, Rust Resistant Flange Design
Price:
0.05USD-0.15USD
MOQ:
10pcs
Delivery Time:
15days
Brand:
JIA SHAN
Product Description
Product Overview
Grade 12.9 black oxide metal bolts are ultra-high-strength fasteners engineered for demanding industrial applications. These carbon steel bolts feature exceptional tensile strength and rust resistance, making them ideal for automotive, mechanical, and construction industries.
Key Specifications
| Attribute | Value |
|---|---|
| Product Name | Metal Bolt |
| Standards | DIN, ASME, ANSI, ISO |
| Materials | Carbon Steel, Stainless Steel, Titanium Alloy, Brass, Copper, Plastic |
| Grade | 12.9 |
| Sizes Available | M6, M8 |
| Finish Options | Black Oxide, Polish, Galvanization, Passivation |
| Certifications | ISO9001:2008, ROHS |
| Place of Origin | China |
Technical Performance
Grade 12.9 bolts are manufactured from SCM435 alloy steel, delivering minimum tensile strength of 1220MPa and hardness of 39-44HRC. The black oxide treatment creates a protective oxide film that prevents rust while eliminating surface reflections, making these bolts suitable for applications where strict appearance requirements are not necessary.
Flange Design Advantages
- Integrated flange provides larger support area than standard bolts
- Enables higher preload capacity and superior anti-loosening performance
- Thinner flange section allows slight deformation for more secure fastening
- Eliminates need for separate washers in many applications
- Critical for wheel hub safety, ensuring stable connection between wheels and vehicle
Industrial Applications
| Industry | Usage |
|---|---|
| Automotive | Essential for high-strength applications including automotive engines, heavy-duty machinery, and bridge construction, valued for superior anti-loosening performance. |
| Mechanical | Widely used in mechanical, electronic, automotive, and construction sectors for connecting various components, circuit boards, engines, and building structures. |
| Energy | Critical for connecting power generation equipment and transmission lines in the energy industry. |
| Architectural | Used in construction engineering, shipbuilding, and petrochemical industries to enhance structural integrity and equipment stability. |
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Company
Hunan Jia Shan Hardware Tech Co., Ltd.
Location
1st Floor,Building 8 Phase II Factory Building,No.8 Lutian Road,Lugu Base,Lugu Street,Xiangjiang New Area,Hunan Province.Postal Code:410205
Contact Person
Tan