PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric PF11MF-M4-1-BL-2

The PF11MF series consists of large knob, spring-loaded, flare-mounted captive panel screws designed for secure fastening of thin materials with easy service access. These screws install flush on the back side of the panel and accommodate panels of any hardness. They are suitable for applications requiring close centerline-to-edge spacing and do not require high installation force. The series includes metric thread sizes and is available in black finish options. All variants feature a spring-loaded mechanism to maintain retention during repeated opening and closing.