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

PF11PM-series captive panel screws are spring-loaded, flare-mounted fasteners with a PC/ABS knob for easy panel access, designed for use in sheet materials with a hardness of HRB 80 or less or HB 150 or less. The screw features a Phillips driver recess, a #2 driver size, and an external thread compliant with ASME B1.1 and ASME B1.13M. The knob is colored per customer selection, with black as standard, and the assembly includes a hardened carbon steel screw and retainer with a 300 series stainless steel spring. The screw has a minimum floating capability of 0.25 mm in all directions. Installation requires a hole diameter of 0.28 inch for the #4-40 thread size and a minimum edge distance of 0.28 inch. The knob material is UL 94V-0 rated and halogen-free, with a maximum operating temperature of 99°C.