Description
The 321 Stainless Steel DIN933 Hex Head Bolt is a premium-grade hex bolt fastener engineered for high-strength structural connections in demanding environments. Manufactured from titanium-stabilized 321 stainless steel, this bolt delivers superior resistance to intergranular corrosion—especially after exposure to high temperatures, welding conditions, or thermal cycling.
Designed according to the DIN933 standard, the bolt features a fully threaded shank and a standard external hexagon head, making installation secure, efficient, and compatible with common tooling. This Hexagon Head Bolt provides reliable mechanical performance for both residential and industrial applications, including machinery, automotive components, petrochemical equipment, and construction structures.
Features & Benefits
- Exceptional Durability and Corrosion Resistance: Made from 321 stainless steel, this DIN933 bolt provides excellent resistance to organic and inorganic acids, as well as general rust and wear.
- High-Temperature Performance: The titanium-stabilized 321 stainless steel material is specifically engineered to resist intergranular corrosion, ensuring the bolt remains strong and reliable even after exposure to high heat from welding.
- Secure Installation: The internal hexagon socket head provides a larger contact area for the tool, reducing the risk of stripping and allowing for higher torque and a more secure fastening.
- Superior Thread Engagement: With a fully threaded design and deep, uniform threads, this hexagon socket bolt ensures maximum grip and a strong, consistent clamping force in a variety of materials.
Specification
|
Specification (d) |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
|
Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2 |
|
Opposite side (s) |
7 |
8 |
10 |
13 |
17 |
19 |
22 |
24 |
|
Head thickness (k) |
2.8 |
3.4 |
4.1 |
5.3 |
6.8 |
7.5 |
9 |
10 |
|
Specification (d) |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
|
Pitch |
2.5 |
2.5 |
2.5 |
3 |
3 |
3.5 |
3.5 |
4 |
|
Opposite side (s) |
27 |
30 |
32 |
36 |
41 |
46 |
50 |
55 |
|
Head thickness (k) |
12 |
12.5 |
14 |
15 |
17 |
19 |
21 |
23 |
FAQ:
Q1: What is the main characteristic of 321 Stainless Steel that makes it suitable for this DIN933 Hex Head Bolt?
A: The main characteristic is its stabilization with titanium, which prevents the formation of chromium carbides during high-temperature exposure (like welding). This ensures the fastener retains its strength and corrosion resistance (intergranular corrosion) even after fabrication processes.
Q2: What is a DIN933 Hex Head Bolt?
A: A DIN933 Hex Head Bolt is a fully threaded hex bolt manufactured to the DIN933 standard, offering consistent dimensions and reliable performance in mechanical assemblies.
Q3: Is this fastener primarily used in high-heat applications?
A: While it is highly capable in high-heat applications (especially after welding), this hex bolt is also excellent in any structural connection requiring high durability and resistance to acids and general corrosion, thanks to the inherent properties of 321 stainless steel.
Q4: Does the full-thread design improve performance?
A: Yes. Full threading maximizes grip, ensures uniform load distribution, and enhances resistance to vibration and mechanical stress.
Q5: How does the internal hexagon socket head differ from a standard hexagonal head bolt?
A: While both are strong fasteners, the Hexagon Socket Bolt uses an internal drive (Allen key) which allows for higher tightening torque, provides a clean, flush appearance when installed, and is less prone to stripping than an external hexagonal head bolt.
