Self-clinching nuts of types S, SS, CLS, CLSS, and SP provide load-bearing threads in thin steel, aluminum, or stainless steel sheets with high pushout and torque-out resistance. Type SP is rated for stainless steel sheets as thin as 0.030″ (0.8 mm). Installation requires a parallel squeezing force that causes sheet metal to cold-flow around an undercut, while a serrated clinching ring prevents rotation. These nuts are compatible with Class 3A/4h or Class 2A/6g screws. They are designed for use in materials meeting specified hardness limits.
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 | S-256-1ZC | S-256-1ZC |
| Product Name | Self-Clinching Nuts - Types S, SS, CLS, CLSS, SP - Unified | Clinch Nuts |
| Type | Self-Clinching Nut | Self-Clinching Nut |
