Self-clinching nuts install in ultrathin sheets with minimal footprint

New PEM® Type SMPP™ self-clinching nuts from PennEngineering® install permanently in ultrathin stainless steel sheet assemblies that have limited space for attachment hardware. With 0.065-in. height and 0.220-in. dia., they provide a minimal footprint in stainless steel sheets as thin as 0.025 in. Their corrosion resistance is similar to 300 series stainless steel.

Upon installation, a serrated clinching ring prevents the nut from rotating in service. The fasteners will not loosen, fall out, or otherwise adversely affect the end-product integrity or performance, the manufacturer states.

The nuts are made from age-hardened A286 stainless steel and recommended for use in stainless sheets with hardness of HRB 90/HB 192 or less. Thread sizes for mating hardware are #2-56 through #6-32 and M2.5 through M3.5.