PennEngineering® Captive Panel Screw-Tool only, Non Flush, Spring-loaded PFC4 - Unified PFC4-440-40

The PFC4-440-40 is a captive panel screw designed for tool-only installation into stainless steel sheets with a hardness of HRB 88 or less. It features a Phillips driver, a shoulder with a blue plastic retaining ring for captive operation, and a dimpled end for positive installation stop. The screw has a thread size of #4-40, a shank length of 0.250 inches, and installs in sheets as thin as 0.025 inches. Recommended hole size is 0.060 inches, with a minimum distance to edge of 0.25 inches. It meets UL 1950 service area access requirements and complies with the EC Machinery Directive.