PennEngineering® Large knob, spring-loaded Types PF11 and PF12 - Unified PF11-832-2--FAS

The PF11 series consists of large knob, spring-loaded captive panel screws designed for easy service access and to prevent loose hardware, suitable for attachment to thin metal panels or similar components requiring repeated access. These screws are self-clinching and feature a spring-loaded mechanism to maintain tension. The series includes variants with knurled or unknurled metal caps, black metal caps, and plastic caps, and is compatible with various panel thicknesses and hardness levels. All variants in this series incorporate a shoulder on the retainer to provide a positive installation stop.