PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric PF12MF-M3-2-BL

The PF12MF series consists of flare-mounted, spring-loaded captive panel screws with a large knob, designed for easy service access and secure mating in thin panels. The screw is made of hardened carbon steel with a zinc-plated finish per ASTM B633, the knob and retainer are aluminum, and the spring is 300 series stainless steel. It features a 1.83 mm (0.072 in) minimum sheet thickness requirement, a 4.75 mm (0.187 in) maximum head diameter, and a 10.59 mm (0.417 in) installed height for M3 x 0.5 thread size. The BL suffix indicates a DuraBlack™ finish on the knob and screw. The part provides a minimum 0.25 mm float in all directions and installs flush on the back side of the panel.