PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF11MF-0420-2

The PF11MF series consists of large knob, spring-loaded flare-mounted captive panel screws designed for secure attachment of thin panels with easy service access and no loose hardware. These fasteners install flush on the back side of the panel and are suitable for applications requiring alignment and repeated access. The series includes variants compatible with a range of panel materials and hardness levels, and features a flare-mounted design that retains the screw in the assembly. The product marking includes a dimple and two-groove identifier per PEM® specifications.