PF11PM series captive panel screws are spring-loaded, flare-mounted fasteners with a PC/ABS knob and hardened carbon steel screw and retainer, designed for installation into sheet metal up to HRB 80 or HB 150 hardness. The screw features an external metric thread, with the M4 variant having a 0.7 mm pitch and a shank length of 7.37 mm. The knob is color-coded violet, and the assembly includes a 300 series stainless steel spring and retaining clip. The part accommodates a minimum hole size of 7.92 mm in sheet thicknesses up to 3.05 mm and has a nominal driver recess size of #2. The knob color is non-stock and available on special order. Installation requires a minimum edge distance of 8.38 mm and provides a floating tolerance of 0.25 mm minimum in all directions.
| PennEngineering® | |
|---|---|
| Product Category | Captive Fasteners |
| Product Number | PF11PM-M4-1-V-2 |
| Product Name | Large Knob, Spring-loaded - PEM C.A.P.S. - Metric |
| Captive Fastener Class / Type | Captive Screws |
| Metric Thread Notation | Metric |
| Hole Size | 0.3118 inch (7.92 mm) |
| Head Type | Other; knob |
