PennEngineering® Large Knob, Spring-loaded - Types PF11M and PF12M - Unified PF11M-0420-0-2

The PF11M series consists of large knob, spring-loaded, self-clinching captive panel screws designed for secure attachment of thin metal panels with repeated access. The fastener's shoulder provides a positive stop during installation, and it is available with a knurled or unknurled metal cap or a black plastic cap. It accommodates mating threads and supports use in painted panels and stainless steel sheets. The design prevents loose hardware and is suitable for applications requiring misalignment tolerance. All variants in the series share these core features.