PennEngineering® Large Knob, Spring-loaded - Types PF11M and PF12M - Metric PF12M-M4-1-BL

The PF12M series consists of large knob, spring-loaded, self-clinching captive panel screws designed for secure attachment of thin metal panels with repeated service access. The part includes a knurled metal cap and is compatible with M4 threading. It features a spring-loaded mechanism to maintain tension and prevent loosening, with a shoulder on the retainer providing a positive installation stop. The screw is suitable for use in applications requiring alignment tolerance and corrosion resistance. Standard cap color is black. Fasteners in this series are marked with unique PEM® identifiers to ensure authenticity.