PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-032-1-BL-2

The PF12MF series consists of spring-loaded, flare-mounted captive panel screws with a large knob, designed for secure, tool-assisted access to panels requiring repeated opening. The screw has a hardened carbon steel thread in ASME B1.1 2A format, an aluminum knob and retainer, and a 300 series stainless steel spring. It installs into panels with a minimum thickness of 0.072 inch and a maximum hole size of 0.266 inch for the #10-32 thread, with a minimum float of 0.010 inch in all directions. The DuraBlack™ finish option includes black anodized knob and black nitrided screw. The part includes a shoulder for positive installation stop and is suitable for use in painted or stainless steel panels. It is compatible with a #2 Phillips driver.