PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-832-0-BL

The PF12MF-series captive panel screw is a spring-loaded, flare-mounted fastener with a large knob for easy manual actuation, designed to attach thin metal panels while preventing loose hardware. It features an external thread conforming to ASME B1.1, 2A for metric and unified sizing, with a hardened carbon steel screw, aluminum knob and retainer, and 300 series stainless steel spring. The part has a DuraBlack finish, specified by the "BL" suffix, with a knurled cap for grip. The screw installs into a minimum panel thickness of 0.072 inch (1.83 mm) with a maximum thread length of 0.266 inch (6.76 mm) and a 0.266 inch countersunk hole. It supports a minimum float of 0.010 inch (0.25 mm) in all directions and uses a #2 driver. The assembly is designed for flush installation on the back side of the panel and can be installed in any panel hardness.