PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric PF12MF-M4-1

The PF12MF series comprises large knob, spring-loaded, flare-mounted captive panel screws with external metric threads, designed for secure panel attachment with easy service access. The screw body is hardened carbon steel with zinc plating per ASTM B633, the knob and retainer are aluminum with natural finish, and the spring is 300 series stainless steel. It installs into a minimum sheet thickness of 1.83 mm and accommodates a maximum hole size of 6.76 mm for M4×0.7 threads. The part provides a float of 0.25 mm minimum in all directions and requires a #2 Phillips driver. A shoulder provides a positive stop during installation, and a DuraBlack finish is available as an option.