The PF11PM series consists of 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 installation in sheet materials with a hardness of HRB 80 or less or HB 150 or less, and uses a Phillips #2 driver. It is flare-mounted with a knurled head and features an external thread of .112-40 (4-40) with a standard black knob, though color variants are available on special order. The screw has a maximum installed height of 0.417 inch and installs in sheet thicknesses up to 0.170 inch. The retainer provides a floating capability of 0.010 inch minimum in all directions. The component is certificated for anti-corrosion use and suitable for applications requiring repeated access without loose hardware.
| PennEngineering® | |
|---|---|
| Product Category | Captive Fasteners |
| Product Number | PF11PM-440-1-R |
| 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) |