Description
The 304 Stainless Steel Expansion Bolt is a heavy-duty mechanical anchoring fastener engineered for secure and permanent fixing in solid base materials such as concrete, brick, and natural stone. Manufactured from high-quality 304 stainless steel and designed in accordance with GB/T 22795-2008, this expansion bolt delivers excellent load-bearing performance, corrosion resistance, and long-term reliability.
Also referred to as an expansion screw or wedge anchor, this stainless steel bolt utilizes a precision expansion mechanism that creates strong radial pressure within the drilled hole when tightened. This ensures a firm, vibration-resistant anchor point, making it an essential fastener for structural, industrial, and construction applications where safety and stability are critical.
Features & Benefits
- Exceptional Corrosion Resistance: Made from 304 stainless steel, this expansion bolt is highly resistant to rust and oxidation, making it suitable for both indoor and demanding outdoor applications.
- Superior Holding Power: The robust expansion mechanism provides a powerful, non-slip grip within solid materials, ensuring the stability and safety of your installation.
- High Strength & Durability: With its high hardness and resistance to deformation, this fastener delivers a strong, reliable anchor point that will not fail under load.
- Easy & Secure Installation: Featuring standard hexagonal parts and deep, uniform threads, the bolt can be easily and securely tightened to achieve maximum clamping force without the risk of slippage.
Specification
|
Conventional type |
L-Total length |
1- Casing length |
D- Screw diameter |
d- Casing diameter |
Punch size |
|
M6*50 |
50 |
30 |
6 |
8 |
Drill holes with an 8mm drill bit |
|
M6*60 |
60 |
40 |
6 |
8 |
|
|
M6*70 |
70 |
50 |
6 |
8 |
|
|
M6*80 |
80 |
60 |
6 |
8 |
|
M8*60 |
60 |
40 |
8 |
10 |
Drill holes with an 10mm drill bit |
|
M8*70 |
70 |
50 |
8 |
10 |
|
|
M8*80 |
80 |
60 |
8 |
10 |
|
|
M8*100 |
100 |
80 |
8 |
10 |
|
|
M8*120 |
120 |
90 |
8 |
10 |
|
|
M10*60 |
60 |
35 |
10 |
12 |
Drill holes with an 12mm drill bit |
|
M10*70 |
70 |
45 |
10 |
12 |
|
|
M10*80 |
80 |
50 |
10 |
12 |
|
|
M10*100 |
100 |
70 |
10 |
12 |
|
|
M10*120 |
120 |
90 |
10 |
12 |
|
M12*80 |
80 |
50 |
12 |
14 |
Drill holes with an 14mm drill bit |
|
M12*100 |
100 |
70 |
12 |
14 |
|
|
M12*120 |
120 |
90 |
12 |
14 |
|
M14*100 |
100 |
60 |
14 |
18 |
Drill holes with an 18mm drill bit |
|
M14*120 |
120 |
80 |
14 |
18 |
|
|
M14*150 |
150 |
100 |
14 |
18 |
|
M16*100 |
100 |
60 |
16 |
20 |
Drill holes with an 20mm drill bit |
|
M16*120 |
120 |
80 |
16 |
20 |
|
|
M16*150 |
150 |
100 |
16 |
20 |
|
M20*150 |
150 |
90 |
20 |
25 |
Drill holes with an 25mm drill bit |
|
M20*200 |
200 |
140 |
20 |
25 |
|
|
M20*250 |
250 |
190 |
20 |
25 |
FAQ:
Q1: What materials are suitable for this Stainless Steel Expansion Bolt?
A: This fastener is specifically designed for secure anchoring into solid masonry materials, including concrete, brick, and stone structures.
Q2: What is the main advantage of using 304 stainless steel for this bolt?
A: The use of 304 stainless steel provides exceptional corrosion resistance, making the bolt highly resistant to rust and oxidation. This ensures the anchor point remains stable and durable in both interior and harsh exterior conditions.
Q3: How does the expansion mechanism work?
A: When the nut is tightened, the expansion sleeve is forced outward against the hole wall, creating strong radial pressure that locks the bolt securely in place.
Q4: Is this a certified product?
A: Yes, this Stainless Steel Expansion Bolt conforms to the rigorous Chinese national standard GB/T 22795-2008 for expansion bolts.
