PennEngineering® Large Knob, Spring-loaded - PEM C.A.P.S. - Unified PF11PM-440-1-V-2

The PF11PM series consists of large knob, spring-loaded captive panel screws with a plastic PEM® C.A.P.S.® knob made of PC/ABS (UL 94V-0, halogen-free), a hardened carbon steel screw and retainer, and a 300 series stainless steel spring. The screw features an external unified thread, accommodates sheet thicknesses up to 0.170 inch for #4-40 thread, and installs into materials with hardness HRB 80 or less or HB 150 or less. The knob is colored violet (V) for visual identification. Installation requires a #2 Phillips driver and provides a floating capability of 0.010 inch minimum in all directions from center. The fastener is designed for applications requiring repeated access without loose hardware.