Hunan Jia Shan Hardware Tech Co., Ltd.
| Payment Terms | T/T L/C |
| Supply Ability | 5000000PCS/WEEK |
| Delivery Time | 15-20 days |
| Packaging Details | bag+carton |
| Application | Construction, Automotive, Machinery |
| Thread Type | Coarse/customized |
| Usage | Fastening |
| Sample | Availble |
| Service | OEM |
| Standard | Non-standard |
| Length | Customized |
| Package | PE+Carton +Pallet |
| Brand Name | JIA SHAN |
| Model Number | DIN6921 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T L/C | Supply Ability | 5000000PCS/WEEK |
| Delivery Time | 15-20 days | Packaging Details | bag+carton |
| Application | Construction, Automotive, Machinery | Thread Type | Coarse/customized |
| Usage | Fastening | Sample | Availble |
| Service | OEM | Standard | Non-standard |
| Length | Customized | Package | PE+Carton +Pallet |
| Brand Name | JIA SHAN | Model Number | DIN6921 |
| Certification | ISO9001 | Place of Origin | China |
| High Light | DIN933 Black Oxide Metal Hexagon Bolt ，M10 Black Oxide Metal Hexagon Bolt ，M6 Black Oxide Metal Hexagon Bolt | ||
DIN 933
Description: DIN 933 specifies fully threaded hexagon head bolts. These bolts have threads that extend along the entire length of the shank.
Applications: DIN 933 bolts are suitable for applications where the entire length of the bolt needs to be threaded. They are commonly used in mechanical engineering, steel construction, automotive manufacturing, and renewable energy projects.
DIN 931
Description: DIN 931 defines partially threaded hexagon head bolts. These bolts have a portion of the shank that is smooth and unthreaded.
Applications: DIN 931 bolts are ideal for structural applications where shear strength and alignment are critical. They are often used in heavy machinery, construction projects, and long-span joints.
| Technical Parameter | Description |
|---|---|
| Product Name | Stud Bolts DIN 975, Threaded Rods Stud Bolt |
| Thread Pitch | Customized |
| Head Type | Round Head, Truss Head |
| Usage | Fastening |
| Port | Shenzhen, Guangzhou |
| Sample | Available |
| Package | PE+Carton+Pallet |
| Length | Customized |
| Function | Connection, Fastening |
| Service | OEM |
| Thread Type | Coarse/Customized |
Black Oxide Hex Bolts: Applications and Advantages
Applications:
Automotive Industry: Widely used in engine components, chassis assemblies, and interior fittings due to corrosion resistance and reduced light reflection.
Machinery & Equipment: Ideal for industrial machinery, agricultural tools, and hydraulic systems where durability and minimal maintenance are critical.
Construction: Employed in structural connections, HVAC systems, and outdoor installations for enhanced weather resistance.
Electronics & Appliances: Used in casings and internal components to prevent rust while maintaining electrical conductivity.
Aerospace & Defense: Applied in non-critical structural parts requiring lightweight corrosion protection.
Advantages:
Corrosion Resistance: The black oxide coating forms a protective layer against moisture and oxidation.
Aesthetic Appeal: Provides a uniform, matte-black finish for a professional appearance.
Minimal Dimensional Change: Unlike coatings like galvanization, black oxide does not alter bolt dimensions, ensuring precise fitment.
Cost-Effective: Lower processing costs compared to electroplating or painting.
Reduced Friction: The smooth surface slightly lowers thread friction during assembly.
No Hydrogen Embrittlement: Unlike electroplating, the process avoids hydrogen uptake, preserving bolt strength.
Compatibility: Works well with secondary coatings (e.g., wax or oil) for added protection.
Technical Notes:
Process: Black oxide (Fe₃O₄) is formed via a chemical reaction with alkaline solutions at high temperatures.
Standards: Often complies with ASTM D769 or MIL-DTL-13924 specifications.
Choose from full Threaded Rods, Threaded Stud Bolt, or partial thread Rods to fit your specific needs.
Metal Bolt product technical support and services include:
Our team of experts is dedicated to providing exceptional support and service to ensure your satisfaction with our Metal Bolt product.
Q1: What is the brand name of this bolt?
A1: The brand name of this bolt is JS.
Q2: What is the model number of this bolt?
A2: The model number of this bolt is DIN975.
Q3: Where is this bolt made?
A3: This bolt is made in China.
Q4: Is this bolt certified?
A4: Yes, this bolt is certified with ISO9001.
Q5: What is the minimum order quantity for this bolt?
A5: The minimum order quantity for this bolt is 1 piece.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2007
Total Annual:
5000000-10000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of ... Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of ...
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