PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF11MF-0420-1

The PF11MF series comprises large knob, spring-loaded, flare-mounted captive panel screws designed for secure attachment of thin materials with requires subsequent access. The fasteners install flush on the back side of the panel and are compatible with painted panels, stainless steel, and circuit boards. They feature anti-rotation properties and are available with black coloring, accommodating installation into panels of varying hardness without requiring high installation force. The series supports alignment tolerances and includes a retaining ring for added security. The product is part of the PEM® captive hardware family, which eliminates loose hardware risks.