PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-032-1-BL

PF12MF-032-1-BL is a spring-loaded, flare-mounted captive panel screw with a large knob, designed for metal panels requiring repeated access without loose hardware. It features a #10-32 thread (0.190-32), a hardened carbon steel screw, aluminum knob and retainer, and a 300 series stainless steel spring. The part has a DuraBlack™ finish on both the knob and screw, identified by the 'BL' suffix. It installs into panels with a minimum thickness of 0.290 inch and provides a minimum float of 0.010 inch in all directions. The assembly includes a shoulder for positive installation stop and a Phillips driver recess. Dimensions and performance are consistent with the PF12MF series, which is applicable to any panel hardness and installs flush on the back side.