Hunan Jia Shan Hardware Tech Co., Ltd.
| Supply Ability | 50000 pcs a week |
| Delivery Time | 15days |
| Packaging Details | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. |
| Name | Metal Screw |
| Standard | DIN,ASME,ASNI,ISO |
| Material | Steel,Stainless steel,Brass,Copper,Titanium Alloy,,Plastic |
| Finish | Polish,Passication,black ,galvanization,Chromate,Dacromet |
| Certificate | ISO9001:2008,ROHS |
| Used | Building Industry Machinery |
| Thread Type | Coarse, Fine |
| Usage | Fastening |
| Function | Connection,Fastening and Decoration |
| Strength | High |
| Size | Various sizes available |
| Measurement System | INCH,metric system |
| Place of Origin | China |
| Brand Name | JIA SHAN |
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Product Specification
| Supply Ability | 50000 pcs a week | Delivery Time | 15days |
| Packaging Details | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. | Name | Metal Screw |
| Standard | DIN,ASME,ASNI,ISO | Material | Steel,Stainless steel,Brass,Copper,Titanium Alloy,,Plastic |
| Finish | Polish,Passication,black ,galvanization,Chromate,Dacromet | Certificate | ISO9001:2008,ROHS |
| Used | Building Industry Machinery | Thread Type | Coarse, Fine |
| Usage | Fastening | Function | Connection,Fastening and Decoration |
| Strength | High | Size | Various sizes available |
| Measurement System | INCH,metric system | Place of Origin | China |
| Brand Name | JIA SHAN | ||
| High Light | Galvanized Steel B7 machine screw ，Nickel Plating Phillips Drive screw ，Truss Head GB973 metal screw | ||
| Attribute | Value |
|---|---|
| Name | Metal Screw |
| Standard | DIN, ASME, ANSI, ISO |
| Material | Steel, Stainless steel, Brass, Copper, Titanium Alloy, Plastic |
| Place of Origin | China |
| Finish | Polish, Passivation, Black, Galvanization, Chromate, Dacromet |
| Certificate | ISO9001:2008, ROHS |
| Used | Building Industry Machinery |
| Thread Type | Coarse, Fine |
| Usage | Fastening |
| Function | Connection, Fastening and Decoration |
| Strength | High |
| Size | Various sizes available |
| Measurement System | INCH, Metric system |
The B7 standard under ASTM A193/A193M specifies alloy steel and stainless steel bolt materials for high-temperature applications in pressure vessels, valves, flanges, and fittings. These screws feature a minimum yield strength of 723.45 MPa (551.20 MPa for B7M) and elongation of 16% (18% for B7M), with maximum hardness of HRC35 (HB235). The material is chromium-molybdenum alloy steel, equivalent to domestic 40CrMo.
Used in high-strength applications like engines and heavy-duty machinery for their superior support area and anti-loosening performance.
Essential for connecting mechanical parts, circuit boards, engines, transmissions, and building structures across various industries.
Connects power generation equipment and transmission lines in the energy sector.
Provides structural connections in building projects, shipbuilding, and petrochemical equipment for enhanced safety and stability.
B7/B7M screws meet ASTM A193/A193M standards with minimum tensile strength of 861.25 MPa (689.00 MPa for B7M). The chromium-molybdenum alloy steel construction (equivalent to 40CrMo) ensures durability in high-temperature environments.
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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