PennEngineering® Large knob, spring-loaded Types PF11 and PF12 - Unified PF12-832-2

The PF12 series comprises large knob, spring-loaded captive panel screws designed for secure attachment of thin metal panels with easy subsequent access. The fastener installs into sheet materials using self-clinching methods and features a retainer that provides a positive stop during installation. Performance data confirms an installation force of 3000 lbs and a retainer pullout force of 100 lbs in cold-rolled steel, with an M4 thread size. The series includes variants with flared or floating mounts, and is available in standard black or custom colors.