PennEngineering® Large Knob, Spring-loaded - PEM C.A.P.S. - Metric PF11PM-M3-0-M

PF11PM-M3-0-M is a large knob, spring-loaded, captive panel screw with metric M3 x 0.5 threading, designed for use in sheet materials with a hardness of HRB 80 or less or HB 150 or less. The knob is made of PC/ABS (UL 94V-0, halogen-free) and features a black color code. It includes a hardened carbon steel screw and retainer, a 300 series stainless steel spring, and a 300 series stainless steel retaining clip. The screw is flare-mounted with a minimum float of 0.25 mm in all directions and installs into a minimum hole size of 3.05 mm with a panel thickness range of 0-1.27 mm. The part complies with ASME B1.1 and B1.13M thread standards and is suitable for applications requiring tool-free access and anti-cross-threading capability.