PennEngineering® Large Knob, Spring-loaded - Types PF11M and PF12M - Unified PF12M-0420-1-2

The PF12M series consists of large knob, spring-loaded, self-clinching captive panel screws designed for secure attachment of thin metal panels with repeated access. These fasteners feature a shoulder on the retainer that provides a positive stop during installation and are compatible with multiple panel thicknesses and materials including stainless steel. The series supports flush mounting and offers reduced risk of loose hardware intrusion into sensitive assemblies. Custom colors and finishes are available, and all variants in the series share the same mounting and functional characteristics as defined by the PF12M type designator.