High-Performance M2-M12 Self-Clinching Nuts: Precision Fastening for Sheet Metal
Our M2-M12 Self-Clinching Nuts are the industry standard for creating strong, permanent internal threads in thin metal sheets that are too thin to be tapped. These fasteners, often referred to as clinch nuts or S/SS/CLS series nuts, are installed by pressing them into a pre-drilled hole using a steady pressure. The cold-flow process forces the host metal into the undercut of the nut, locking it securely in place.
As a leading clinching nut factory, we provide fasteners that offer exceptional push-out and torque-out resistance, ensuring your electronic enclosures and automotive components remain secure even under intense vibration.
- Permanent Threading: Provides high-strength threads in sheets as thin as 0.8mm.
- Flush Finish: The nut sits flush with the host sheet on one side, allowing for clean, unobstructed surfaces in precision assemblies.
- No Welding Required: Eliminates the need for heat, fumes, or spatter associated with weld nuts, protecting sensitive electronics and pre-finished surfaces.
- Material Versatility: CLS series for steel, SS series for stainless steel, and SP series for ultra-hard panels.
Refer to the table below for the correct metric self-clinching nut selection based on your panel thickness.
| Thread Size | Hole Size in Sheet (+0.08) | Min. Dist. to Edge | Recommended Sheet Hardness |
|---|---|---|---|
| M3 | 4.22 mm | 5.6 mm | HRB 80 (SS) / HRB 70 (S) |
| M4 | 5.41 mm | 6.4 mm | HRB 80 (SS) / HRB 70 (S) |
| M5 | 6.35 mm | 7.1 mm | HRB 80 (SS) / HRB 70 (S) |
| M6 | 8.75 mm | 8.6 mm | HRB 80 (SS) / HRB 70 (S) |
| M8 | 10.47 mm | 9.7 mm | HRB 80 (SS) / HRB 70 (S) |
Our S-Series Clinching Nuts are critical for high-tech industries:
- Telecom & IT: Mounting components in server chassis and networking switches.
- Automotive Electronics: Securing PCB boards and sensors in thin-walled housings.
- Medical Equipment: Providing hygienic, flush-fit threading in stainless steel diagnostic tools.
- Consumer Electronics: High-volume production for laptops, appliances, and smart home hubs.
- Prepare the hole using a standard drill or punch. Do not deburr the hole before installation.
- Place the nut into the hole and apply a steady squeezing force. Never use a hammer or impact force.
- Ensure the anvil and punch are parallel to prevent lopsided installation.
- Verify that the clinching ring is fully embedded and the nut is flush with the sheet.
Q: What is the difference between S and CLS clinch nuts?
A: S series is generally carbon steel with zinc plating, while CLS series is made from 300 series stainless steel for better corrosion resistance.
Q: Can I use M6 clinching nuts in aluminum panels?
A: Yes, carbon steel S series nuts work exceptionally well in aluminum, providing a much stronger thread than the parent material.
Global Supplier of M2-M12 Self-Clinching Fasteners
Looking for wholesale clinching nuts with guaranteed quality and fast lead times? We support custom orders and provide full technical data sheets. Contact us today for a free quote and samples!
