M3 M4 Stainless steel hex heavy head Metal bolt with nut washer SS304 SS316 A2 A4-80
| Attribute | Value |
|---|---|
| Usage | Fastening |
| Size | Various sizes available |
| Style | Steel washer nut |
| Head Style | Hexagon head |
| Strength | High |
| Finish | Polished/Zinc/Anodizing |
| Manufacturer | JIA SHAN Hardware Company |
| Length | As customisation |
| Package | Small Packing+Carton Packing+Pallet |
| Standard | DIN |
| Package Quantity | 100 pieces |
| Shape | Bolt |
| Measurement System | INCH, Metric |
| Port | Shenzhen |
| Quality | Inspection before shipment |
| Color | As customisation |

Hex Bolts: Applications and Advantages
Hex bolts are widely used across various industries and products due to their simple design, high strength, and ease of installation.
Although all-thread bolts have many advantages, you need to pay attention to the following points when using them:
Choosing the right material and specification: choose the right material and specification according to the specific application scenario to ensure the reliability and durability of the connection.
Correct installation and tightening: When installing all-thread bolts, you need to ensure that the nut is properly tightened to avoid loosening or damage to the connection.
Regular Inspection and Maintenance: For all-threaded bolt connections that are subjected to long-term loads, their tightening status and wear and tear should be inspected regularly to ensure the continued reliability of the connection.
- Construction Industry - Used in structural steel connections like bridges, building frameworks, and scaffolding for stability and durability.
- Machinery Manufacturing - Essential for fastening mechanical parts in lathes, heavy-duty equipment, and assembly lines.
- Automotive and Transportation - Secures critical parts like chassis, engines, and transmission systems in vehicles.
- Home Appliances and Electronics - Used in assembling air conditioners, washing machines, and televisions for reliable connections.
- Energy and Petrochemical Industry - Crucial in wind turbines, nuclear power plants, and petrochemical plants for securing large equipment.
- Marine and Offshore Engineering - Used in shipbuilding and offshore platforms, with stainless steel variants resisting seawater corrosion.
- Furniture Manufacturing - Provides stability and durability in beds, tables, chairs, and cabinets.
- High Strength and Load Capacity - Withstands significant tensile and shear forces for reliable connections.
- Variety of Materials - Available in carbon steel, stainless steel, and alloy steel with excellent corrosion resistance.
- Easy to Install - Hexagonal head design allows easy tightening with common tools like wrenches.
Stainless steel hex bolts generally require chromium content of 18% or more and nickel content of 8% or more, offering good corrosion resistance, heat resistance, and wide applications in food processing, agriculture, auto parts, building materials, and chemical industries.
316 stainless steel typically contains chromium (16%+), nickel (10%+), and molybdenum (2%+), providing enhanced acid resistance, welding performance, and making it suitable for medical/surgical applications and fine industrial components.
| 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 |


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