PennEngineering® Screw Head, Spring-loaded - Metric PFS2-M3-40

PFS2-M3-40 is a spring-loaded captive panel screw with an M3 metric thread, designed for tool or hand operation to secure thin metal panels while keeping the fastener captive during removal. The assembly includes a hardened carbon steel screw with bright nickel plating over copper flash, a 300 series stainless steel retainer, and a nylon retaining ring with a temperature limit of 93°C. The minimum hole size in sheet material is 1.53 mm, and the maximum sheet thickness is 1.53 mm. The screw has a minimum distance of 6.35 mm from hole center to edge. The retainer is identifiable by a blue plastic retaining ring, a PEM trademark. This part is part of the PFC2/PFS2 series, which applies to both steel and stainless steel variants, with performance data validated for sheet hardness up to HB 150 or HRB 80 or less.