Hunan Jia Shan Hardware Tech Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T |
| Supply Ability | 10000,Piece/Pieces,Month |
| Delivery Time | about 12-18days |
| Packaging Details | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. |
| Product name | Metal Bolt |
| Service | OEM |
| Corrosion Resistance | Yes |
| Port | Shenzhen, Guangzhou |
| Corrosionresistance | High |
| Thread Type | Standard/Customization |
| Package | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. |
| Head Type | Round |
| Color | Sliver |
| Brand Name | JIASHAN |
| Certification | ISO 9001 |
| Place of Origin | china |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T | Supply Ability | 10000,Piece/Pieces,Month |
| Delivery Time | about 12-18days | Packaging Details | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. |
| Product name | Metal Bolt | Service | OEM |
| Corrosion Resistance | Yes | Port | Shenzhen, Guangzhou |
| Corrosionresistance | High | Thread Type | Standard/Customization |
| Package | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. | Head Type | Round |
| Color | Sliver | Brand Name | JIASHAN |
| Certification | ISO 9001 | Place of Origin | china |
| High Light | M10 M12 carbon steel carriage bolt ，Dacromet coated metal bolt ，4.8 5.8 8.8 grade carriage bolt | ||
M10 M12 1018 Carbon Steel 4.8 5.8 8.8METAL BOLT Carriage Bolt Dacromet 500 h
Product Description
Low-carbon blank is zinc-flake coated at 180 °C, achieving 500 h salt-spray with no hydrogen embrittlement risk.
Heat-treatment follows when mechanical properties above 400 MPa are required: medium-carbon grades are quenched and tempered at 550 °C to achieve Grade 8.8 or A307-C strength, while stainless steels are solution-annealed at 1050 °C and water-quenched to restore corrosion resistance. Final finishing is selected for the target environment: zinc electroplating (5–8 µm) or hot-dip galvanizing (45–60 µm) for carbon steel outdoor use, black oxide plus oil for indoor furniture, Dacromet or Geomet for 1000-hour salt-spray demand, and passivation or electropolishing for stainless A2-70/A4-80 bolts used in food equipment.
| Industry | Usage |
|---|---|
| Automotive | High-strength applications in engines, heavy-duty machinery, and bridge construction |
| Mechanical | Connecting mechanical parts, circuit boards, engines, transmissions in various industries |
| Energy | Connecting power generation equipment and transmission lines |
| Architectural |
Building structures, shipbuilding, and petrochemical equipment |
Key Features
Coating thickness 8 µm equals 40 µm electro-zinc, giving clearance in 9 mm holes without reaming; no white rust keeps apiaries tidy.
The unique square-neck design makes Carriage Bolt the first choice for any joint where access is limited to one side and where a smooth, tamper-resistant head is desired. In timber construction the bolt is dropped into a pre-drilled hole; the square neck pulls into the wood when the nut is tightened on the opposite face, eliminating the need for a wrench on the head side.
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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