Hunan Jia Shan Hardware Tech Co., Ltd.
| Payment Terms | T/T, Western Union |
| Supply Ability | Batch order abailable |
| Delivery Time | 1-5 weekds |
| Usage | Fastening |
| Size | Various sizes available |
| Style | L & J Hook Bolt with nut washer assortment |
| Head Style | L & J Hook Bolt |
| Strength | High |
| Finish | Polished |
| Manufacturer | JIA SHAN Hardward Company |
| Length | As customisation |
| Package | Small Packing+Carton Packing+Pallet |
| Standard | DIN |
| Package Quantity | 100 pieces |
| Shape | J bolt/ L bolt |
| Measurement System | INCH, Metric |
| Port | Shenzhen |
| Quality | Inspection before shipment |
| Color | As customisation |
| Material | Steel:304/316/301/310/201 |
| Brand Name | JIA SHAN |
| Model Number | DIN, ASEM, ISO |
| Certification | ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | Batch order abailable |
| Delivery Time | 1-5 weekds | Usage | Fastening |
| Size | Various sizes available | Style | L & J Hook Bolt with nut washer assortment |
| Head Style | L & J Hook Bolt | Strength | High |
| Finish | Polished | Manufacturer | JIA SHAN Hardward Company |
| Length | As customisation | Package | Small Packing+Carton Packing+Pallet |
| Standard | DIN | Package Quantity | 100 pieces |
| Shape | J bolt/ L bolt | Measurement System | INCH, Metric |
| Port | Shenzhen | Quality | Inspection before shipment |
| Color | As customisation | Material | Steel:304/316/301/310/201 |
| Brand Name | JIA SHAN | Model Number | DIN, ASEM, ISO |
| Certification | ISO | Place of Origin | China |
| High Light | M4 M16 carbon steel hook bolt ，Class 4.8 grade bolt with washer ，Zinc plated L J hook bolt | ||
| Attribute | Value |
|---|---|
| Usage | Fastening |
| Size | Various sizes available |
| Style | L & J Hook Bolt with nut washer assortment |
| Head Style | L & J Hook Bolt |
| Strength | High |
| Finish | Polished |
| Manufacturer | JIA SHAN Hardward Company |
| Length | Customizable |
| Package | Small Packing+Carton Packing+Pallet |
| Standard | DIN |
| Package Quantity | 100 pieces |
| Shape | J bolt/ L bolt |
| Measurement System | INCH, Metric |
| Port | Shenzhen |
| Quality | Inspection before shipment |
| Color | Customizable |
| Material | Steel: 304/316/301/310/201 |
Proper bolt placement and reinforcement techniques are crucial. Solutions include welding reinforcement bars for loose bolts, adjusting bolt length through cutting or elongation, and correcting position mismatches.
Equipment fixing, steel structure foundations, street lamps, traffic signs, pumps, boiler installation, heavy equipment pre-embedded fixing.
Brinell hardness (HB) and Rockwell hardness are primary measurement methods, each with specific testing procedures.
Grade 8.8 Zinc plating" usually refers to High strength bolts or fasteners of strength class 8.8 with an electro galvanised surface.
1. Grade 8.8 (8.8)
Indicates the mechanical property grade of the bolt, where:
‘8’ denotes tensile strength ≥ 800 MPa
‘.8’ indicates that the yield strength is 80% of the tensile strength
The material is generally medium carbon steel or low carbon alloy steel, and after heat treatment (quenching + tempering).
2. Zinc plating
It is an electroplated zinc finish used to improve corrosion resistance.
Commonly labelled as:
‘8.8 Galv’ or ‘8.8 Zinc plated’.
The thickness of the coating is usually 5-12 μm, depending on the standard or the environment in which it is used.
Steel properties can be enhanced through alloy mixing:
Carbon steel and alloy steel bolts have multiple performance levels (3.6 to 12.9), with 8.8+ being high-strength bolts requiring heat treatment.
| No. | C% | Cr% | Ni% | Mo% |
|---|---|---|---|---|
| 304 | 0.07 | 17.5-19.5 | 8.0-10.5 | / |
| 316 | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| 301 | 0.15 | 16.0-18.1 | 6-8 | / |
| 310 | 0.08 | 24-26 | 19-22 | / |
| 304L | 0.03 | 18-20 | 8-12 | / |
| 316L | 0.03 | 16-18 | 10-14 | 2-3 |
| 321 | 0.08 | 17-19 | 9-12 | / |
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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