CLS-440-0 is a self-clinching nut designed for permanent installation in aluminum, steel, or stainless steel sheets, providing load-bearing threads with high pushout and torque-out resistance. It installs by cold flow of the sheet metal into an undercut beneath the head, with a serrated clinching ring to prevent rotation. The part is compatible with sheets meeting specified hardness limits and is dimensionally equivalent to NASM45938/1 specifications. It is approved for use in aluminum and steel sheets and is intended for use with Class 3A/4h or Class 2A/6g screws.
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® | bisco industries | |
|---|---|---|
| Product Category | Nuts | Nuts |
| Product Number | CLS-440-0 | CLS-440-0 |
| Product Name | Self-Clinching Nuts - Types S, SS, CLS, CLSS, SP - Unified | Clinch Nuts |
| Type | Self-Clinching Nut | Self-Clinching Nut |
