Introducing PEM® PEMFLEX® self-locking, self-clinching fasteners, engineered for reliable performance in repeated use applications. Featuring a shoulder design for enhanced functionality, these fasteners offer a flexing action that ensures effective prevailing locking torque. With a flange for precise installation, they provide a positive stop for seamless assembly. Types LK, LKA, and LKS PEMHEX variants boast thread locking performance meeting NASM25027 standards, with a durable all-metal construction available in steel, stainless steel, and aluminum options. The innovative PEMFLEX design, with two rugged flexing jaws, guarantees superior retention and prevents loosening in demanding environments, while safeguarding screw threads. Suitable for a wide range of applications, these fasteners deliver high torque-out and pushout resistances, ensuring secure and long-lasting attachment.