The PEM® PEMFLEX® self-locking, self-clinching fasteners are designed for durability and reliability in repeated use applications. Featuring a shoulder for enhanced performance, these fasteners offer effective prevailing locking torque. The flexing action allows for repeated use without compromising locking effectiveness, while the flange provides a positive stop during installation. With thread locking performance meeting NASM25027 specifications, these fasteners ensure secure attachment without protruding through the sheet. Available in steel, stainless steel, and aluminum, with a black dry film lubricant for improved locking performance in certain types, they are ideal for various industrial applications. The innovative PEMFLEX design, with two rugged flexing jaws, enhances retention and prevents loosening even in severe service conditions, while also protecting screw threads from damage. Trust in the proven PEM technology for fast, simple assembly and long-lasting performance.