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

The PF11MF series consists of large knob, spring-loaded, flare-mounted captive panel screws designed for secure fastening and easy service access without loose hardware. They install into thin metal panels and other materials, retaining the screw even when unthreaded. The series offers retainer pullout forces up to 400 lbs for M4 and M5 threads, with installation forces up to 400 lbs, and is suitable for use in painted or stainless steel panels. The design allows for flush mounting on the back side of the panel and accommodates alignment compensation. The part includes a black finish, as standard for this variant.