PennEngineering® Large knob, spring-loaded Types PF11 and PF12 - Unified PF11-032-1

The PF11 series consists of large knob, spring-loaded captive panel screws designed for attaching thin materials with repeated access. These fasteners install into sheet metal and feature a spring-loaded mechanism to maintain retention. They are available in self-clinching, flare-mounted, or floating configurations, with options for knurled or un-knurled metal caps and black or custom-colored plastic caps. The shoulder on the retainer provides a positive stop during installation.