PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric PF12MF-M6-0

The PF12MF series consists of large knob, spring-loaded, flare-mounted captive panel screws with a hardened carbon steel screw, aluminum knob and retainer, and 300 series stainless steel spring. It installs into sheets with a minimum thickness of 1.83 mm for M6 thread size and requires a countersunk hole with a maximum diameter of 8.2 mm. The screw has a 6g external thread compliant with ASME B1.13M, a flared shoulder for positive installation stop, and a minimum float of 0.25 mm in all directions. Available finishes include natural anodized knob and zinc-plated screw per ASTM B633, with optional DuraBlack™ coating. The part is designed for applications requiring repeated access without loose hardware.