PEM® PEMFLEX® self-locking, self-clinching fasteners are engineered for reliable performance and durability. Featuring a shoulder for enhanced functionality, these fasteners offer a flexing action that ensures repeated use and effective locking torque. The flange provides a positive stop during installation, while the all-metal construction in steel, stainless steel, or aluminum options caters to various application needs. Treated with a black dry film lubricant for improved locking performance, these fasteners adhere to stringent NASM25027 specifications. The innovative PEMFLEX design, with two rugged flexing jaws, prevents relaxation and loosening in demanding environments, ensuring secure attachment with high torque-out and pushout resistances. Designed to protect screw threads, these fasteners guarantee long-lasting, reliable performance in industrial settings.