PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-832-2

The PF12MF-832-2 is a spring-loaded, flare-mounted captive panel screw with an #8-32 thread, designed for easy service access without loose hardware. It features a knurled cap, a hardened carbon steel screw with zinc plating per ASTM B633, a 300 series stainless steel spring, and an aluminum knob and retainer. The part allows a minimum float of 0.25 mm in all directions and installs into sheet thicknesses from 0.084 to 0.350 inches. The screw engages with a countersunk hole and is driven with a #2 Phillips driver. The assembly includes a shoulder to provide a positive stop during installation.