PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF11MF-632-0

PF11MF-632-0 is a large knob, spring-loaded, flare-mounted captive panel screw with a #6-32 thread, designed for applications requiring close centerline-to-edge mounting and installation into panels of any hardness. The retainer features a shoulder for positive stop during installation and provides a minimum 0.010" float in all directions. Components include an aluminum knob and retainer, a hardened carbon steel screw, and a 300 series stainless steel spring. The screw is zinc plated per ASTM B633, SC1 (5µm), Type III, colorless, with an optional DuraBlack™ finish. Installation requires a countersunk hole and specific tooling with anvil and punch dimensions of 0.390" and 0.468" respectively. It is compatible with painted panels and supports anti-cross-threading.