PennEngineering’s PEMHEX locknuts’ hexagonal insert prevents mating screws from loosening

PEMHEX® self-clinching prevailing torque locknuts from PennEngineering® integrate a trademarked blue nylon hexagonal insert designed to prevent mating screws from loosening in service because of vibration, thermal cycling, or other application-related factors.

The reusable locking element provides the necessary torque resistance to grip mating screws and allow for their repeated installation and removal over time. This locking method helps reduce the possibility of conductive debris being generated from repeated installation and removal of mating screws.