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 part is designed for use in sheet materials with a hardness of HRB 80 or less or HB 150 or less. It features a Phillips driver recess, externa mechanics B1.1, 2A screw thread, and installs into panels with a minimum thickness of 0.036 in (0.92 mm). The assembled height above the sheet is 0.417 in (10.59 mm) for the 440 thread size. The screw includes a flare-mounted retainer and a black knob. The component is intended for applications requiring repeated access without loose hardware.
| PennEngineering® | |
|---|---|
| Product Category | Captive Fasteners |
| Product Number | PF11PM-440-0-B |
| Product Name | Large Knob, Spring-loaded - PEM C.A.P.S. - Unified |
| Captive Fastener Class / Type | Captive Screws |
| Decimal Thread Diameter | 0.1120 inch (2.84 mm) |
| Unified Thread Notation | Unified |
| Shoulder Diameter | 0.0360 inch (0.9144 mm) |
| Panel Thickness | 0.0360 inch (0.9144 mm) |