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High-Performance Self-Clinching Nuts | PEM Nuts | Press-Fit Nuts from China Suppliers and Factory
Product Overview
| Product Name | Self-Clinching Nut / PEM Nut / Press-Fit Nut |
| Standards | PEM® standard, DIN, ISO, or customized |
| Material | Carbon Steel (Heat Treated) |
| Stainless Steel (SS304, SS316) | |
| Aluminum (Optional) | |
| Thread Type | Metric / UNC / UNF |
| Surface Finish | Zinc Plated (Clear / Yellow / Blue) |
| Passivated (for stainless steel) | |
| Black Oxide | |
| Plain | |
| Size Range | Metric: M2 – M12 |
| Inch: #2-56 to 1/2" | |
| Custom thread sizes and lengths available |
Product Features
-
Installs into thin metal sheets (as thin as 0.5 mm) -
Provides strong, load-bearing internal threads -
Displaces metal into undercut for permanent hold – no welding needed -
Flush installation – nut sits flush with the surface -
Resists push-out and torque-out -
Ideal for high-volume assembly with automation
Applications
-
Sheet metal fabrication -
Electronics enclosures and control panels -
Telecommunication equipment -
Medical devices and automotive dashboards -
Aerospace and instrumentation housing -
Appliance and lighting industries
Packaging & Delivery
| Packaging | Bulk in cartons with inner bags |
| Small boxes or labeled polybags | |
| Customized packaging upon request | |
| Lead Time | 7–30 days depending on quantity and custom orders |
| Shipping Port | Tianjin, China |
Why Choose Hebei Chudu
Over 10 years of experience in precision fastener manufacturing.
Wide selection of self-clinching hardware: nuts, studs, and standoffs.
ISO 9001 certified with strict quality assurance.
Custom engineering support for OEM/ODM projects.
Export to 40+ countries with full logistics support.
Consistent quality and competitive pricing.
Wide selection of self-clinching hardware: nuts, studs, and standoffs.
ISO 9001 certified with strict quality assurance.
Custom engineering support for OEM/ODM projects.
Export to 40+ countries with full logistics support.
Consistent quality and competitive pricing.
Frequently Asked Questions
What is a self-clinching nut?
A self-clinching nut (often called a PEM nut) is a threaded fastener that, when pressed into ductile metal sheets, displaces the host material around the mounting hole, causing it to cold-flow into a specially designed annular undercut for a permanent hold.
How are self-clinching nuts installed?
They are installed using a parallel squeezing force (clinching press). The nut is placed into a pre-punched or drilled hole, and pressure is applied to embed the clinching ring into the metal sheet. Impact forces should not be used.
Can self-clinching nuts be used in stainless steel?
Yes, but the fastener must be harder than the host sheet. For stainless steel sheets, you need to use specifically hardened stainless steel self-clinching nuts (such as SP types) to ensure proper installation.
What is the minimum sheet thickness required for installation?
Self-clinching nuts can be installed in thin metal sheets starting from 0.5 mm. The specific thickness depends on the thread size and the design of the fastener.
Do self-clinching nuts require welding?
No, they do not require welding, tapping, or adhesives. They rely entirely on mechanical deformation to provide high push-out and torque-out resistance, keeping the reverse side flush.