PennEngineering® Captive Panel Screw-Low Profile Knob, Spring-loaded - Metric PF61-M3-5-1-CN

The PF61 is a low-profile, spring-loaded captive panel screw designed for attaching thin metal panels with repeated access. It installs into M3 threads and offers a large knob for tool or finger operation. Performance data confirms a retainer pushout force of 150 lbs in aluminum and 160 lbs in cold-rolled steel. The fastener is part of a series that includes PF50, PF51, PF52, PF60, PF61, and PF62 variants, all sharing the same low-profile spring-loaded design and installation method. The exact marking for the PF61 variant includes a dimple and two-groove identifier per PEM® product standards.