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. |
| Finish | plain,black,customized |
| Head Type | Round |
| 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. | Finish | plain,black,customized |
| Head Type | Round | Brand Name | JIASHAN |
| Certification | ISO 9001 | Place of Origin | china |
| High Light | M12 zinc paint coated flange head screw ，12 point torx head metal bolt ，B7 zinc coated flange bolt | ||
Engineered for critical service in high-temperature and high-pressure environments, this 12-point flange bolt is manufactured from A193 Grade B7 alloy steel. This material is a chromium-molybdenum steel (typically 4140/4142) that is quenched and tempered to achieve a robust combination of high tensile strength and toughness. The zinc paint coating provides a durable, sacrificial barrier against corrosion, making it suitable for outdoor and industrial atmospheres. The 12-point flange head, combined with a Torx drive, offers exceptional torque transfer and positive engagement, virtually eliminating the risk of cam-out during installation. Available in M7 and M12 sizes, this bolt is a workhorse for demanding industrial applications.
| 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 |
The A193 B7 specification is the industry standard for high-temperature bolting in the petrochemical, power generation, and refining sectors. These bolts are commonly used to fasten flanges in piping systems, pressure vessels, valves, and turbine casings where elevated temperatures and pressures are constant. The zinc paint coating adds a layer of defense against corrosive elements often found in industrial environments. The 12-point flange head is ideal for applications with limited access, as the socket can engage the bolt from multiple positions. The Torx drive feature ensures that mechanics can apply the high torques required for proper gasket compression without damaging the fastener head.
The primary advantage is conformance to the A193 B7 material specification, a globally recognized standard for high-temperature bolting, guaranteeing performance and traceability. The zinc paint coating offers robust corrosion protection, significantly extending the service life of the fastener in harsh outdoor or industrial settings. The dual-drive feature (12-point external and Torx internal) provides ultimate installation flexibility; mechanics can use a standard 12-point socket or a Torx driver depending on tool availability and access. The integral flange ensures proper load distribution, protecting the surface of the flange or component being clamped.
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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