PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric PF11MF-M6-1

The PF11MF series consists of spring-loaded, flare-mounted captive panel screws with a knurled or smooth metal knob, designed for installation into panels of any hardness, with a shoulder providing a positive stop during installation. The PF11MF-M6-1 variant has an M6 x 1 thread, a screw length of 12.7 mm, and an installed height of 13.46 mm. The retainer is aluminum, the screw is hardened carbon steel, and the spring is 300-series stainless steel. The screw is zinc-plated per ASTM B633, SC1 (5µm), Type III. A DuraBlack™ finish is available as an option. The fastener allows a minimum float of 0.25 mm in all directions from center. Installation requires a countersunk hole and specific tooling with a punch and anvil designed for M6 threads. The part is suitable for close centerline-to-edge applications and does not require high installation force.