Composi-Lok II fasteners incorporate Monogram’s drive nut concept further simplifying the installation process by incorporating a disposable hex drive nut. The hex drive nut provides a positive fastener-to-tool engagement and eliminates the tendency for flush style fastener recesses to “cam-out” during installation.
Since the drive nut is common to a variety of diameters and all head styles only three nose pieces are required to install the entire Composi-Lok® line. Nose pieces never wear out and the disposable magnetic drive nut stays on the discarded pintail after installation permitting easier retrieval and minimizing the chances of small pintails finding their way into F.O.D. critical areas.