The PEM® PEMFLEX® self-locking, self-clinching fasteners offer reliable performance with their unique design. Featuring a shoulder for enhanced functionality, these fasteners provide a secure hold with effective prevailing locking torque. The flexing action allows for repeated use without compromising locking performance, while the flange ensures a positive stop during installation. Made from 300 series stainless steel, these fasteners are durable and resistant to corrosion. With their all-metal construction and black dry film lubricant treatment, they deliver high torque-out and pushout resistances, meeting stringent NASM25027 specifications. The PEMFLEX design, with its rugged semicircular flexing jaws, prevents loosening and thread damage, making it ideal for applications requiring reliable fastening in severe service conditions.