PennEngineering® Large knob, spring-loaded Types PF11 and PF12 - Unified PF12-440-0-BL

The PF12 series consists of large knob, spring-loaded captive panel screws designed for secure attachment of thin metal panels with repeated access. These screws feature a self-clinching installation method and include a spring to maintain tension and prevent loosening. They are available in black finish and support mating with threaded holes in standard sheet hardness. The series offers configurations for use in painted panels, stainless steel, and printed circuit boards, with options for flush mounting and multiple threading alignments. Custom sizes and colors are available on special order.