PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-032-2-BL

The PF12MF series consists of spring-loaded, flare-mounted captive panel screws with a large knob, designed for easy service access and secure retention in thin panels. The screw feature a hardened carbon steel threaded shaft, aluminum knob and retainer, and a 300 series stainless steel spring. The part is available with a DuraBlack™ finish, indicated by the 'BL' suffix, which includes a black anodized knob and black nitride-treated screw. It installs into a minimum sheet thickness of 0.084 inches with a 0.290-inch maximum sheet thickness, and accommodates a #10-32 thread. The assembly provides a minimum float of 0.010 inch in all directions and a positive stop during installation via a shoulder design. Driver size is #2 for Philips recess. All dimensions and finishes comply with ASME B1.1 and ASTM B633 standards.