PennEngineering® Screw Head, Spring-loaded - Unified PFS2-0420-04-BN

PFS2-0420-04-BN is a spring-loaded captive panel screw with a screw head, designed for tool or hand operation in thin sheet materials. It has a #10-32 thread, 0.500 inch screw length, and a black nitride finish (BN). The assembly consists of a carbon steel screw, a 300-series stainless steel spring, and a nylon retaining ring rated to 200°F (93°C). It is intended for use in sheets with hardness up to HRB 80 or HB 150. The minimum hole size is 0.413 inch and minimum distance to edge is 0.38 inch. The part retains a positive mounting stop during installation and remains captive for repeated access.