Highlight:
M16 Stainless Steel Hexagonal Bolt
, A4-70 Stainless Steel Hexagonal Bolt
, SUS304 Stainless Steel Hexagonal Bolt
Usage: |
Fastening |
Size: |
Various Sizes Available |
Style: |
Steel Hex Head With Washer Nut |
Head Style: |
Hexagon Head |
Strength: |
High |
Finish: |
Polished/Zinc/ Anodizing |
Manufacturer: |
JIA SHAN Hardward 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 |
M16 M18 Stainless Steel Hexagonal Bolt and Nut Washer SUS304 SUS316 A2-70 A4-70
M16 M18 Stainless Steel Hexagonal Bolt and Nut Washer SUS304 SUS316 A2-70 A4-70
Product Description:
The M5 and M6 stainless steel hexagonal bolts with nut washers are essential fasteners for medium to heavy-duty applications. Made from high-quality SUS304 and SUS316 stainless steel, these bolts offer exceptional strength and resistance to corrosive environments. They are often used in machinery, automotive, and construction applications, providing secure, long-lasting connections.
Features:
• High Corrosion Resistance: The SUS304 and SUS316 materials provide exceptional resistance to rust, oxidation, and corrosion, especially in harsh environments.
• Grade Options: Available in A2-70 and A4 grades, these bolts offer different levels of tensile strength, making them adaptable to various requirements.
• Reliable Performance: The hexagonal design of the bolt ensures easy installation and secure fastening with a hex wrench.
Advantages:
• Durability: These bolts are highly durable, ensuring that your assembly remains intact for extended periods, even under heavy loads.
• Low Maintenance: Stainless steel’s resistance to corrosion and staining means minimal upkeep is required for long-term reliability.
• Versatility: Suitable for a wide range of applications, from construction to industrial machinery.
Maintenance Tips:
• Regularly check bolts for tightness, particularly in high-vibration environments.
• Keep bolts clean to avoid the accumulation of corrosive substances.
• For extreme environments, consider applying a protective coating to further enhance the bolt’s longevity.
Applications
A2-70 is an austenitic stainless steel grade typically based on 304 or 304L material. It has a minimum tensile strength of 700 MPa and a yield strength of 450 MPa, with an elongation of at least 40%. This grade is characterized by its excellent corrosion resistance, which is attributed to its high chromium content. The chemical composition includes carbon (up to 0.08%), manganese (up to 2.0%), phosphorus (up to 0.045%), sulfur (up to 0.030%), silicon (up to 1.0%), chromium (18.0-20.0%), and nickel (8.0-10.5%). A2-70 fasteners are widely used in general industrial applications where moderate strength and good corrosion resistance are required.
A4 grade, on the other hand, is typically made from 316L stainless steel, which is known for its superior corrosion resistance, particularly in marine and chemical environments. This grade has a minimum tensile strength of 700 MPa and a yield strength of around 207 MPa. The elongation is not specifically defined in the standard but is generally around 40%. The chemical composition of A4 includes iron (66-74%), chromium (16-18%), nickel (10-14%), and molybdenum (2-3%). The addition of molybdenum enhances its resistance to pitting and crevice corrosion, making A4 fasteners ideal for use in harsh environments such as those found in the marine industry or chemical processing plants.
In summary, while both A2-70 and A4 grades offer excellent corrosion resistance, A4 provides superior performance in highly corrosive environments due to its enhanced chemical composition. A2-70 is more commonly used for general industrial applications where cost and availability are also important considerations.
| 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 |
/ |
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