PennEngineering® Screw Head, Spring-loaded - Metric PFS2-M4-72-BN

PFS2 is a spring-loaded captive panel screw with a screw head, designed for tool or hand operation to attach thin materials while keeping the fastener captive. It features a 300 series stainless steel retainer, carbon steel screw, and 300 series stainless steel spring, with a nylon retaining ring rated to 200°F (93°C). It installs into sheet materials up to 0.060 inch (1.53 mm) thick with a minimum hole size of 0.072 inch (1.83 mm) and a minimum edge distance of 0.280 inch (7.11 mm). The screw thread is M4 x 0.7, with a nominal shank length of 0.250 inch (6.35 mm). A DuraBlack finish (BN) is available as an option, applied per AMS2753, Section 3, and conforms to ASME B1.1 and ASME B1.13M thread standards for Class 2A/6g external threads.