K Series Product Introduction.
K Series Self-Clinching Nuts are designed to provide strong, reusable internal threads in thin sheet metal where traditional tapping is not possible. With a hexagonal or knurled outer profile and an undercut clinching groove, the nut embeds permanently into the sheet after pressing, delivering excellent resistance against torque-out and push-out.
Key Features
- Self-Clinching Design
Provides a permanent, non-loosened thread in thin metal sheets. - For Thin Sheet Applications
Works effectively on sheets as thin as 0.8–1.0 mm. - High Torque-Out & Push-Out Performance
Hex profile prevents rotation; the clinching groove locks the nut securely in place. - Durable, Reusable Threads
Made from hardened steel or stainless steel for repeated assembly cycles. - Compatible with Automated Assembly
Standardized dimensions suitable for pneumatic or hydraulic presses. - Multiple Material Options
Carbon steel, stainless steel, and aluminum for diverse application needs.
Typical Applications
- Electronic enclosures
- Chassis and metal housings
- Server and telecom equipment
- Industrial control systems
- Medical devices
- Automotive electronics
- Lightweight aluminum structures
The K Series self-clinching nut is installed on a thin sheet using the press-fit principle:
- Nut Design: The nut features clinching teeth and an undercut groove at the bottom.
- Pressing Process: The nut is pressed vertically into the sheet using a press or pneumatic/hydraulic tool.
- Metal Flow Fixation: The sheet metal flows into the undercut groove while the clinching teeth embed into the metal, forming a permanent lock.
- Holding Strength: After installation, the nut resists high torque-out and push-out forces, preventing rotation or ejection.
Suggested Diagram Elements:
- Sheet thickness
- Nut profile with clinching teeth
- Metal flow into the undercut groove
- Pressing direction arrow


