PennEngineering® Large Knob, Spring-loaded - Types PF11M and PF12M - Metric PF11M-M4-2-BL

The PF11M series consists of large knob, spring-loaded, self-clinching captive panel screws designed for secure attachment of thin metal panels with repeatable access. These fasteners install into sheets up to 1.6 mm thick and feature a knurled or unknurled metal cap, with black as a standard color option. The shoulder on the retainer provides a positive stop during installation, ensuring consistent embedment depth. The series supports metric thread sizes, including M4, and is available in versions compatible with stainless steel panels. All variants in the series meet PEM® quality standards and are marked with publisher identifiers to authenticate authenticity.