Hunan Jia Shan Hardware Tech Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 10000 |
| Delivery Time | 5-15days |
| Packaging Details | plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film/ Customized as your requirements |
| Package Quantity | 100 pieces |
| Color | Customized/Silver/Plain |
| Material | Carbon Steel |
| Thread Pitch | Customized |
| Corrosionresistance | High/Customized |
| Headtype | Hexagonal/Hex |
| Port | Shenzhen, Guangzhou |
| Common Uses | Construction, automotive, machinery |
| Finish | zinc plated/ silver/ blue/ black/ white |
| Thread Type | Mechined Thread |
| Rust Proof | Yes |
| Manufacturer | Various manufacturers |
| Brand Name | JIA SHAN |
| Model Number | Customized |
| Certification | ISO 9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 10000 |
| Delivery Time | 5-15days | Packaging Details | plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film/ Customized as your requirements |
| Package Quantity | 100 pieces | Color | Customized/Silver/Plain |
| Material | Carbon Steel | Thread Pitch | Customized |
| Corrosionresistance | High/Customized | Headtype | Hexagonal/Hex |
| Port | Shenzhen, Guangzhou | Common Uses | Construction, automotive, machinery |
| Finish | zinc plated/ silver/ blue/ black/ white | Thread Type | Mechined Thread |
| Rust Proof | Yes | Manufacturer | Various manufacturers |
| Brand Name | JIA SHAN | Model Number | Customized |
| Certification | ISO 9001 | Place of Origin | China |
| High Light | Grade 12.9 galvanized metal bolt ，carbon steel hexagonal bolt ，architecture grade 10.9 bolt | ||
Grade 12.9 10.9 Galvanized plated metal bolt carbon steel hexagonal design architecture
1,Description:
Hexagonal bolts have the following significant advantages over other fasteners:
1. Superior mechanical properties• High torque transmission efficiency: The hexagonal design provides a large contact surface between the wrench and the bolt head, making it less likely to slip and enabling it to withstand a greater tightening torque
• Strong load-bearing capacity: The head is not prone to deformation or stripped (slippage), making it suitable for high-load connections
• Uniform force distribution: The hexagonal structure ensures a more balanced stress distribution, reducing local fatigue damage
2. Good ease of operation• Strong tool versatility: Standard hex wrenches, socket wrenches, and ratchet wrenches can all be operated, and the tools are readily available
• Multi-directional operation: It can be disassembled and assembled from multiple angles on the side (one every 60°), with good spatial adaptability
• Fast and efficient: When combined with electric/pneumatic tools, it can achieve rapid batch assembly, enhancing production efficiency
3. Standardization and interchangeability• Unified international standards: Adhering to standards such as ISO, DIN, and GB, the specifications are globally universal, and procurement and replacement are convenient
• Complete range of specifications: Parameters such as diameter, length, and pitch are serialized and complete, meeting the requirements of various working conditions
• Good compatibility: It is fully compatible with all kinds of nuts, washers and standard parts, and can be flexibly combined.
2,Applications:
Machinery Manufacturing: Equipment assembly, base mounting
Construction Engineering: Steel structure connections, bridge construction
Automotive Industry: Engine and chassis assembly
Electronics and Electrical: Enclosures, equipment housings
Furniture Manufacturing: Metal frame structures
Pipe Installation: Flange connections
The principle of galvanisation can be understood on two levels: the process principle (how the coating is applied) and the corrosion prevention principle (how rust is prevented). There are primarily two processes: hot-dip galvanising and electrogalvanising:
I. Hot-Dip Galvanising Principle
Steel components are immersed in molten zinc at approximately 450°C, forming a coating through high-temperature metallurgical reactions.
The process comprises three stages:
Surface activation: Following acid pickling to remove rust, steel components are immersed in a fluxing agent (ammonium zinc chloride solution) to eliminate surface oxide layers, exposing the iron substrate's "active surface".
Wetting reaction: Upon immersion in molten zinc, iron and liquid zinc undergo mutual diffusion—iron atoms dissolve into the zinc bath while zinc atoms permeate the steel surface, forming an Fe-Zn alloy layer (bonded as firmly as welding).
Coating formation: After removal, a layer of pure zinc adheres to the outer surface. Upon cooling, the structure forms from the inside out:
Steel substrate → Fe-Zn alloy layer → Pure zinc layer
II. Electroplating Zinc Principle (Electroplating)
Utilises electrolytic cell reactions to deposit zinc layers onto steel surfaces.
The process resembles "battery charging":
Cathode: Steel component (connected to power source negative terminal)
Anode: Zinc plate (connected to power source positive terminal)
Electrolyte: Zinc salt solution containing Zn²⁺ ions
Upon applying current, the following reactions occur:
Anode: Zinc plate dissolves → Zn²⁺ ions enter the solution
Cathode: Zn²⁺ ions + 2e⁻ → Zinc atoms deposit onto the steel surface
By controlling the current, duration, and solution composition, the coating thickness and lustre can be precisely regulated.
Available in small packing, carton packing, or pallet configurations to meet your shipping and storage requirements.
Manufactured by JIA SHAN Hardware Company with strict quality control measures and pre-shipment inspection.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2007
Total Annual:
15000000-20000000
Employee Number:
100~200
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 member 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 member of ...
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