PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-0420-1-BL-2

The PF12MF series consists of spring-loaded, flare-mounted captive panel screws with a large knob, designed for secure fastening and easy access. The screw is made of hardened carbon steel with a zinc-plated finish per ASTM B633, SC1 (5µm), Type III, colorless, while the knob and retainer are aluminum with a natural finish. The BL suffix indicates a DuraBlack™ finish option for both knob and screw. The part is designed for installation into sheet thicknesses up to 0.084 inches with a 1/4-20 thread, and includes a shoulder to provide a positive stop during installation. The assembly supports a minimum 0.010 inch float in all directions. Driver size is #3.