PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-0420-0-BL

PF12MF-0420-0-BL is a large knob, spring-loaded, flare-mounted captive panel screw for #10-32 threads, featuring a black DuraBlack™ finish on both the knob and screw. It has a knurled cap for manual actuation, a shoulder that provides a positive installation stop, and a minimum float of 0.25 mm in all directions. The knob and retainer are aluminum, the screw is hardened carbon steel, and the spring is 300 series stainless steel. It installs into sheet metals as thin as 0.072 inches and requires a 0.323 inch minimum hole size. The assembly is zinc-plated with Type III, colorless plating per ASTM B633, SC1, except for the DuraBlack™ treated components.