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

PF12MF-0420-2-BL is a large knob, spring-loaded, flare-mounted captive panel screw designed for secure fastening with easy service access. It features a 1/4-20 thread, a knurled cap, and a DuraBlack finish with black anodized knob and black nitrided screw. The screw is constructed with an aluminum knob and retainer, a hardened carbon steel screw body, and a 300 series stainless steel spring. It installs into a minimum sheet thickness of 0.410 inch with a recommended hole size of 0.575 inch and provides a float of 0.010 inch minimum in all directions. The part includes a shoulder for positive installation stop and is compatible with a #3 driver.