CLS-M3-5-1 is a self-clinching nut designed for installation in aluminum, steel, or stainless steel sheets, providing load-bearing threads with high pushout and torque-out resistance. It features a serrated clinching ring to prevent rotation after installation and is compatible with sheets meeting specified hardness limits. The nut installs by cold flowing the surrounding sheet metal into an undercut under parallel pressure. It is dimensionally equivalent to NASM45938/1 specifications and requires Class 3A/4h or Class 2A/6g screws for use. The part number format indicates a metric M3 thread with a 5mm grip length, consistent with the CLS series profile.
Type S, SS, CLS, and CLSS nuts provide load-bearing threads in thin sheets with high pushout and torque-out resistance.
Type SP, PEM 300® nuts provide strong load-bearing threads in stainless steel sheets as thin as .030”.
Types S and SS are recommended for use in steel or aluminum sheets HRB (Rockwell “B” scale) 80 or less and HB (Hardness Brinell) 150 or less.
| PennEngineering® | |
|---|---|
| Product Category | Nuts |
| Product Number | CLS-M3-5-1 |
| Product Name | Self-Clinching Nuts - Types S, SS, CLS, CLSS, SP - Metric |
| Type | Self-Clinching Nut |
