PEM® PEMFLEX® self-locking, self-clinching fasteners offer reliable retention and prevailing locking torque for repeated use. Featuring a shoulder for enhanced performance, these fasteners boast a flexing action that maintains effective locking torque over time. The flange ensures a positive stop during installation, while the black dry film lubricant on steel and stainless steel variants (Types LK and LKS) enhances locking performance. With a design that minimizes thread damage and prevents loosening in demanding applications, these fasteners provide secure, permanent attachment with high torque-out and pushout resistances. Suitable for steel, stainless steel, and aluminum materials, they are a preferred choice for fast, simple assembly in various industrial settings.