PennEngineering® Large Knob, Spring-loaded - Types PF11MW and PF12MW - Metric PF12MW-M3-1-1

PF12MW captive panel screws are spring-loaded, flare-mounted, floating fasteners with a knurled knob, designed for applications where mating panel spacing is not acceptable. They install into thin panels and compensate for hole misalignment. The part is available in metric thread sizes, with the M3 version featuring a 3.07 mm shank diameter, 8.79 mm maximum thread length, and 1.6 mm sheet thickness capability. The knob and retainer are aluminum, the screw is hardened carbon steel, and the spring and washer are 300 series stainless steel. The standard finish is natural, with optional black anodize or DuraBlack™ coating. Installation data and performance ratings are listed for all variants in the series.