GB 12615.3 Closed End Blind Rivets China Factory and Professional Suppliers
The GB 12615.3 Closed End Blind Rivets are high-performance fastening solutions engineered for applications where access is limited to a single side of the workpiece. Designed according to rigorous China Standards, these rivets feature a specialized closed-end design that provides an IP68-rated seal, ensuring a liquid-tight and airtight connection that eliminates the need for ongoing maintenance in harsh environments.
Constructed from premium materials through advanced cold forging, sheet metal stamping, or tube processing, these rivets consist of a precision-engineered rivet body and a high-strength nail core. By utilizing a specialized riveting tool, the core is drawn into the body to create a permanent, deformation-based expansion on the blind side, resulting in a secure, vibration-resistant joint ideal for industrial-grade assembly.
| Standard Compliance | GB 12615.3 (China Standard) | Sealing Grade | IP68 Sealed (Liquid/Air Tight) |
|---|---|---|---|
| Component Parts | Rivet Body & Nail Core (Stem) | Manufacturing Process | Cold Forging / Stamping / Tube Processing |
| Head Profiles | Round, Countersunk, Large Flange | Installation Method | Single-Sided Blind Riveting |
| Maintenance Level | Zero Maintenance Required | Joint Type | Permanent Deformation Fixation |
| Key Performance | High Breaking Force Resistance | Material Compatibility | Multi-material Structural Fixing |
The closed-end design creates a hermetic seal, preventing moisture and contaminants from entering the joint.
Engineered for permanent installation, removing the need for periodic tightening or inspection.
Perfect for blind holes where the backside of the workpiece is inaccessible during assembly.
Precise nail core breaking points ensure consistent tension and maximum joint stability.
Available in various head shapes to match specific aesthetic and aerodynamic requirements.
Significantly reduces assembly time compared to traditional bolting and nut fastening.



Strict selection of carbon steel and alloy materials to ensure structural integrity.
Utilizing cold forging technology to maximize grain density and strength.
Rigorous testing for breaking force and sealing efficiency per GB standards.
Advanced coating options to prevent corrosion in marine or chemical environments.
Streamlined supply chain for rapid delivery of large-scale industrial orders.
Expert guidance on selecting hole sizes and head profiles for specific joints.
| Feature Comparison | Standard Rivets | GB 12615.3 Closed End |
|---|---|---|
| Sealing Capability | Open End (Leaks) | IP68 Fully Sealed |
| Maintenance Cost | Periodic Checks | Zero Maintenance |
| Installation Speed | Medium | Ultra-Fast |
| Environmental Resistance | Moderate | Extreme (Liquid-Tight) |
| Life Cycle Value | Standard | High (Longer Durability) |
The closed-end design creates a physical barrier that prevents liquids and gases from passing through the rivet hole, making it ideal for IP68 sealed applications where waterproofing is critical.
They are highly versatile and can be used with aluminum, steel, and various composite materials commonly found in automotive and construction fields.
The hole size should correspond precisely to the rivet body diameter to ensure a tight fit and maximum expansion strength on the blind side.
Yes, due to their high breaking force and vibration resistance, they are widely used in automotive, rail transit, and marine vessels.
They are commonly employed for the rapid fixing of doors, windows, curtain walls, and other structural components where backside access is impossible.
Yes, we offer round heads, countersunk heads for flush finishes, and large flange heads for materials with low bearing strength.