Description
The 2205 Stainless Steel DIN933 M20 Hex Head Bolt is a premium industrial-grade fastener engineered for use in high-stress, corrosive, and structurally demanding environments. Manufactured in accordance with DIN933, this bolt features a full-thread design and a strong external hex head, ensuring secure torque application and consistent mechanical performance.
Made from 2205 duplex stainless steel, the bolt provides exceptional yield strength and outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Available in multiple lengths (M20×40–160), this hex bolt is ideal for marine, chemical, construction, automotive, and heavy industrial environments where reliability and durability are critical.
Features & Benefits
- Exceptional Strength: Made from 2205 duplex stainless steel, this fastener offers a yield strength that is more than twice that of standard stainless steel, providing a secure and long-lasting hold under high-stress conditions.
- Superior Corrosion Resistance: The bolt's material provides excellent overall and local resistance to stress corrosion and pitting, making it ideal for use in harsh and corrosive environments.
- Reliable Full Thread: The fully threaded shank allows for deeper thread engagement, distributing force evenly and ensuring a strong, consistent clamp load.
- Secure Installation: The standard external hexagonal head allows for easy and secure tightening with standard tools, preventing slippage during installation.
Specification
|
Specification -d |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
|
Dental distance |
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 |
|
Dental distance |
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 an M20 Hex Head Bolt?
A: An M20 Hex Head Bolt refers to a hexagonal head fastener with a nominal thread diameter of 20 mm, commonly used in heavy-duty structural and industrial applications.The range M20×40−160 indicates lengths are available from 40mm to 160mm.
Q2: What is the benefit of using 2205 Duplex Stainless Steel?
A: The primary benefit is its significantly higher strength and enhanced corrosion resistance compared to common stainless steels. The duplex structure provides superior resistance to stress corrosion cracking, which is critical in marine and chemical environments.
Q3: Does the DIN 933 standard guarantee that this hex bolt is fully threaded?
A: Yes. The DIN 933 specification for a hex bolt requires a fully threaded shank (sometimes called "full teeth"), ensuring maximum thread engagement along the entire length of the bolt body.
Q4: Does the full-thread design improve performance?
A: Absolutely. Full threading provides deeper engagement with nuts or tapped holes, ensuring better clamping force and stability under load.



