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. These fasteners install permanently by cold flowing sheet metal into an undercut under parallel pressure, and feature a serrated clinching ring to prevent rotation. Type SP is rated for stainless steel sheets as thin as 0.030 in. (0.8 mm). Installation requires sheet hardness within specified limits, and compatible screws must be Class 3A/4h or no smaller than Class 2A/6g. The nuts are designed for use in aluminum, steel, or stainless steel panels and meet dimensional equivalency to NASM45938/1 specifications where applicable.
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-0524-1ZC | S-0524-1ZC |
| Product Name | Self-Clinching Nuts - Types S, SS, CLS, CLSS, SP - Unified | Clinch Nuts |
| Type | Self-Clinching Nut | Self-Clinching Nut |
