Hunan Jia Shan Hardware Tech Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T |
| Product name | Hexagon Socket Head Metal Screw |
| Finish | customized |
| Delivery Time | about 12-18days |
| Port | Shenzhen, Guangzhou |
| Package | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. |
| Supply Ability | 10000,Piece/Pieces,Month |
| Corrosionresistance | High |
| Packaging Details | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. |
| Corrosion Resistance | Yes |
| Thread Type | Standard/Customization |
| Service | OEM |
| Place of Origin | china |
| Certification | ISO 9001 |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T | Product name | Hexagon Socket Head Metal Screw |
| Finish | customized | Delivery Time | about 12-18days |
| Port | Shenzhen, Guangzhou | Package | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. |
| Supply Ability | 10000,Piece/Pieces,Month | Corrosionresistance | High |
| Packaging Details | Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. | Corrosion Resistance | Yes |
| Thread Type | Standard/Customization | Service | OEM |
| Place of Origin | china | Certification | ISO 9001 |
| High Light | M18 M22 galvanized hex socket screw ，Dacromet coated machine metal screw ，Din912 grade 10.9 hex head screw | ||
M18 M22 Hdg Hot Dig Galvanized Dacromet Geomet Hex Socket Head Machine Metal Screw Din912 Grade 4.8 8.8 10.9 12.9
These large-diameter hex socket head cap screws are available in M18 and M22, designed for heavy-duty and highly corrosive environments. Material: carbon or alloy steel with property classes 4.8, 8.8, 10.9, or 12.9. Surface finishes include three high-performance options: Hot Dip Galvanized (HDG), Dacromet, and Geomet. HDG provides a thick zinc layer (40-70μm) for outdoor steel structures; Dacromet and Geomet are chromium-free zinc-aluminium coatings offering excellent salt spray resistance (up to 1000 hours) with no hydrogen embrittlement risk. Head conforms to DIN912, allowing high torque via large hex keys.
| 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 |
Wind turbine tower flange connections – Grade 12.9 + Dacromet for cyclic loads.
Bridge seismic stoppers – HDG provides 30+ years rust protection.
Chemical reactor manways – Geomet coating resists acid mist.
Mining machinery chassis – M22 high-strength bolts.
Port crane rail clips – HDG resists seawater.
Large diameters, high load capacity – M18/M22 for heavy connections.
Multiple strength grades – from 4.8 to 12.9 for design flexibility.
Premium anti-corrosion coatings – HDG, Dacromet, Geomet for various aggressivity levels.
No hydrogen embrittlement – Dacromet/Geomet safe for high-strength bolts.
DIN912 standard – hex drive allows very high torque transmission.
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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