PennEngineering® Large Knob, Spring-loaded - Types PF11M and PF12M - Unified PF12M-0420-0

The PF12M series comprises large knob, spring-loaded, self-clinching captive panel screws designed for secure attachment of thin metal panels with repeated access. These fasteners feature a shoulder on the retainer that provides a positive stop during installation and are compatible with panels of varying hardness and thickness. The series supports installation into stainless steel and includes a retained screw for hardware control. Custom colors and finishes are available, with standard black options offered. Installation requires no loose components, minimizing risk of internal damage. The series includes variants with flaring or floating mounting styles, though the PF12M variant specifically is self-clinching.