Ad
Clinch Nut Spec Table
Clinch Nut Specifications — 5 sizes
A press-in nut permanently installed into sheet metal, creating a strong threaded point in thin panels. Essential for sheet metal assembly.
Practical Notes
- Sheet hardness must be below nut hardness (HRB ≤70 recommended). High-hardness sheets cause nut pullout or sheet deformation.
- Use dedicated SUS clinch nuts for stainless sheets. Dissimilar metal contact causes galvanic corrosion.
Selection Guide
Press-fit permanently into sheet metal to create threaded fastening points. Essential for sheet metal design — computers, telecom equipment, server racks. Sheet hardness must be lower than nut (HRB ≤70 recommended); use dedicated SUS clinch nuts for stainless sheets.
Clinch Nut
5 sizes| Nominal | d | P | H (Height) | B (Wrench) | Other |
|---|---|---|---|---|---|
| M3 | 3 | 0.5 | 4.2 | - | - |
| M4 | 4 | 0.7 | 5 | - | - |
| M5 | 5 | 0.8 | 6.5 | - | - |
| M6 | 6 | 1 | 7.5 | - | - |
| M8 | 8 | 1.25 | 8.5 | - | - |
Key Features
- Press-fit permanently into sheet metal; non-rotating after installation
- Knurling/serration bites into sheet surface for torque resistance
- S/CLS/SP type classification; selected based on sheet hardness and thickness
Key Applications
Computer chassis, telecom sheet metal, medical device panels, server rack mounts, precision instrument brackets
FAQ
Difference between clinch nut and rivet nut?
Clinch nuts are press-fitted permanently (non-removable). Rivet nuts are crimp-installed (slightly removable). Clinch nuts have stronger retention and higher production throughput.