Description
The GB12618.4 All-Steel Open-Mouth Core-Pulling 304 Stainless Steel Dome Head Rivet is a premium-grade fastener engineered for high-strength, single-sided connections. Unlike bi-metal alternatives, these stainless steel blind rivets are manufactured entirely from 304-grade stainless steel, providing a unified material structure that offers exceptional resistance to wear, durability, and corrosion in the most demanding environments.
Designed with a rounded dome head, these rivets provide a clean, professional aesthetic while ensuring a smooth, open body after the installation process is complete. This design provides a secure and reliable fastening solution for blind hole applications where access to the rear of the assembly is restricted. Fully compliant with the GB12618.4 standard, these rivets deliver consistent performance across industrial, automotive, and marine equipment applications.
Features & Benefits
- All-Steel 304 Construction: By using 304 stainless steel for both the body and the mandrel, these rivets provide maximum corrosion resistance and eliminate the risk of galvanic corrosion between components. This makes them essential for severe outdoor and chemical environments.
- Superior Mechanical Strength: The high hardness and oxidation resistance of the all-steel design provide a robust, permanent joint with excellent shear and tensile strength. This structural integrity often exceeds that of bi-metal or aluminum-based rivets.
- Low-Profile Aesthetic Finish: The rounded dome head profile provides a smooth, visually appealing finish. Beyond aesthetics, this head style effectively distributes the clamping load over the material surface to prevent pull-through or damage to the substrate.
- Stringent Quality Assurance: Manufactured to conform to the GB12618.4 standard, these rivets guarantee standard concentricity, a fine fit, and a smooth surface finish. This ensures reliable performance in high-speed assembly lines and critical structural joints.
Specification
|
Nominal diameter-d |
dk |
k max |
d1 max |
L1≈ |
|||
|
Nominal-d |
max |
min |
max |
min |
|
||
|
2.4 |
2.48 |
2.25 |
5 |
4.2 |
1 |
1.55 |
25 |
|
3 |
3.08 |
2.85 |
6.3 |
5.4 |
1.3 |
2 |
|
|
3.2 |
3.28 |
3.05 |
6.7 |
5.8 |
1.3 |
2 |
|
|
4 |
4.08 |
3.85 |
8.4 |
6.9 |
1.7 |
2.45 |
27 |
|
4.8 |
4.88 |
4.65 |
10.1 |
8.3 |
2 |
2.95 |
|
|
5 |
5.08 |
4.85 |
10.5 |
8.7 |
2.1 |
2.95 |
|
|
6 |
6.08 |
5.85 |
12.6 |
10.8 |
2.5 |
3.4 |
|
|
6.4 |
6.48 |
6.25 |
13.4 |
11.6 |
2.7 |
3.9 |
|
FAQ
Q1: What is the advantage of an "All-Steel" 304 rivet over a standard blind rivet?
A: Standard blind rivets often use an aluminum body with a steel mandrel. An all-steel 304 rivet uses stainless steel for both parts, ensuring that the entire fastener is corrosion-resistant. This also eliminates the risk of galvanic corrosion that occurs when dissimilar metals are joined.
Q2: Is the "Dome Head" suitable for soft materials?
A: Yes. The rounded dome head profile provides a wide bearing surface that effectively distributes the load over the material. This makes it an excellent choice for fastening metals to composites or plastics where a high-clamping force is required without damaging the surface.
Q3. What does "Open-Mouth" refer to in the description?
A: "Open-mouth" refers to the rivet body being open at the end, allowing the mandrel to be pulled through to create the expansion. While it provides excellent structural strength, it is not liquid-tight; for applications requiring a seal against water or gas, a closed-end rivet would be recommended.
Q4: Why is "White washing" mentioned for the surface treatment?
A: White washing (a term often used for a light oil or zinc coating on the mandrel) is applied to the core to ensure it pulls smoothly and breaks consistently during installation. This treatment protects the core during processing and storage.
