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Hunan Jia Shan Hardware Tech Co., Ltd.

  • China ,Hunan
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China Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9
China Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9

  1. China Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9
  2. China Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9
  3. China Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9
  4. China Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9

Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9

  1. MOQ: 10
  2. Price: 0.01-11
  3. Get Latest Price
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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  1. Product Details
  2. Company Details

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 Black oxide metric hex boltCarbon steel grade 8.8 boltHot dip anti corrosion bolt

Black Oxide Anti corrostion Metric Hex Bolt Carbon steel Hot Dip GRADE 8.8 10.9Black color

 

 

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

 

 

Blackening treatment is a metal surface treatment process that forms a film of iron (III) oxide on the metal surface to achieve the purpose of rust prevention and aesthetic appearance.

 

The principle of blackening treatment

 

The basic principle of blackening treatment is to form an oxide film on the metal surface through chemical reactions, mainly composed of iron (III) oxide (Fe3O4). This film can isolate air, thereby preventing the metal from oxidizing and rusting. Blackening treatment is usually carried out at low temperatures. The black film formed not only has a certain anti-rust ability but also can eliminate the reflection on the metal surface and enhance the appearance.

1,Pretreatment: Clean the metal surface to remove oil stains and rust.

2. Pickling: Use acid solution to remove surface oxides when necessary.

3. Blackening treatment: Immerse the metal part in a solution containing sodium hydroxide and an oxidant, heat it to a certain temperature, and cause an oxidation reaction on the metal surface to form a film of iron (III) oxide.

4. Post-treatment: Usually, anti-rust oil is applied to the treated metal parts to enhance the anti-rust effect.

 

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

 

3,Technical Advantages

1. Cost-effectiveness and practicality
Low manufacturing costs: Simple structure, mature processing techniques, and low mass production expenses
Easy maintenance: Can be repeatedly disassembled and reassembled for reuse, facilitating equipment servicing and structural adjustments
High reliability: Proven technology with predictable failure modes and controllable safety factors
2. Extensive Application Scenarios
High adaptability: Suitable for virtually all industrial sectors including steel structures, machinery, furniture, automotive, and electronics
Environmental compatibility: Materials and surface treatments (galvanisation, Dacromet coating, stainless steel, etc.) enable operation in corrosive or high-temperature environments
Flexible configuration: Can be used independently or combined with spring washers, flat washers, lock nuts, etc., to achieve additional functions such as anti-loosening and sealing

 
Packaging Options

Available in small packing, carton packing, or pallet configurations to meet your shipping and storage requirements.

Packaging options for stainless steel hex bolts
Manufacturer Information

Manufactured by JIA SHAN Hardware Company with strict quality control measures and pre-shipment inspection.

Manufacturing facility of JIA SHAN Hardware Company Quality control process at JIA SHAN Hardware Shipping and logistics operations

 

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • 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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  • Hunan Jia Shan Hardware Tech Co., Ltd.
  • 1st Floor,Building 8 Phase II Factory Building,No.8 Lutian Road,Lugu Base,Lugu Street,Xiangjiang New Area,Hunan Province.Postal Code:410205
  • https://www.cnc-partsmachining.com/

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